Sergi Martinez-RamirezMD
Psychiatry & Neurology, Neurology
2027 Medicare Advantage
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Medicare Advantage plans for Suffolk and Essex counties, MA.
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Directory results See what each insurance company reports
Listed on 33 plans so far
Some of Tufts Health Plan, UnitedHealthcare, Fallon Health, Mass General Brigham Health Plan, Aetna Medicare, Commonwealth Care Alliance Massachusetts, Commonwealth Care Alliance, Inc., Blue Cross Blue Shield of Massachusetts, eternalHealth, Humana and Molina Healthcare of Massachusetts's 2027 plans in Suffolk and Essex counties, MA haven't been checked yet.
The 57 Medicare Advantage plans we show for Suffolk and Essex counties, MA in 2027
- 33 list Sergi
- 14 not listed
- 10 not checked yet

Tufts Health Plan
11 plans list Sergi; not listed on 2 other plans.
Tufts Medicare Preferred HMO Basic No Rx (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 777 North St, # 5, Pittsfield, MA, 01201
This result applies to these offices. Other locations are not confirmed.
$0a monthTufts Medicare Preferred HMO Prime No Rx (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 777 North St, # 5, Pittsfield, MA, 01201
This result applies to these offices. Other locations are not confirmed.
$0a monthTufts Medicare Preferred HMO Smart Saver Rx (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 777 North St, # 5, Pittsfield, MA, 01201
This result applies to these offices. Other locations are not confirmed.
$0a monthTufts Medicare Preferred HMO Value No Rx (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 777 North St, # 5, Pittsfield, MA, 01201
This result applies to these offices. Other locations are not confirmed.
$0a month

UnitedHealthcare
8 plans list Sergi.
AARP Medicare Advantage from UHC MA-0003 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Patriot No Rx MA-MA01 (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Patriot No Rx MA-MA2 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage from UHC MA-0006 (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$75a month

Fallon Health
6 plans list Sergi.
Fallon Medicare Plus Orange (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 15 Parkman St, # 8, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$0a monthFallon Medicare Plus Saver No Rx (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 15 Parkman St, # 8, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$0a monthFallon Medicare Plus Green (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 15 Parkman St, # 8, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$83a monthFallon Medicare Plus Blue (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 15 Parkman St, # 8, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$185a month

Mass General Brigham Health Plan
5 plans list Sergi.
Mass General Brigham Advantage Core (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, # 835, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 57 Prospect St, Nantucket, MA, 02554
This result applies to these offices. Other locations are not confirmed.
$0a monthMass General Brigham Advantage Secure (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, # 835, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 57 Prospect St, Nantucket, MA, 02554
This result applies to these offices. Other locations are not confirmed.
$60a monthMass General Brigham Advantage Plus (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, # 835, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 57 Prospect St, Nantucket, MA, 02554
This result applies to these offices. Other locations are not confirmed.
$180a monthMass General Brigham SCO (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, # 835, Boston, MA, 02114
- 52 Second Ave, Ste 2000, Waltham, MA, 02451
- 1 Hospital Rd, Oak Bluffs, MA, 02557
- 57 Prospect St, Nantucket, MA, 02554
This result applies to these offices. Other locations are not confirmed.
$0a month

Aetna Medicare
1 plan lists Sergi.
Aetna Medicare Signature (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
This result applies to these offices. Other locations are not confirmed.
$0a month
4 more Aetna Medicare plans haven't been checked yet.

Commonwealth Care Alliance Massachusetts
1 plan lists Sergi.
CCA Senior Care Options (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 725 Albany St, Ste 7B, Boston, MA, 02118
- 52 Second Ave, Waltham, MA, 02451
This result applies to these offices. Other locations are not confirmed.
$33.80a month

Commonwealth Care Alliance, Inc.
1 plan lists Sergi.
CCA One Care (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15 Parkman St, Boston, MA, 02114
- 725 Albany St, Ste 7B, Boston, MA, 02118
- 52 Second Ave, Waltham, MA, 02451
- 777 North St, Pittsfield, MA, 01201
This result applies to these offices. Other locations are not confirmed.
$33.80a month

Blue Cross Blue Shield of Massachusetts
Not listed on its 7 plans here. That isn't proof they're out of network.

eternalHealth
Not checked yet.

Humana
Not checked yet.
3 more Humana plans haven't been checked yet.

Molina Healthcare of Massachusetts
Not listed on its 3 plans here. That isn't proof they're out of network.
Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.
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Original Medicare
Original Medicare status
Most Medicare Supplement (Medigap) policies have no provider network: they help pay Original Medicare's cost sharing where Medicare is accepted. Medicare SELECT policies can require network providers for full benefits. Ask the office whether they accept Medicare.
Medicare enrollment and assignment have not been verified here. Advantage directory results do not answer this question.
No opt-out record in this CMS file. CMS's file covers data through 2026-08-31. This does not establish Medicare enrollment, assignment, or whether the office accepts new Medicare patients.
CMS opt-out source · Data through 2026-08-31 · Reviewed Oct 25, 2026
Where they practice
3 practice locations
- NPI issued
- 2015
- Registry record updated
- Aug 1, 2023
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Sergi Martinez-Ramirez?
In Suffolk and Essex counties, MA, 33 Medicare Advantage plans for 2027 list Sergi in provider data from Medicare.gov or the carrier, including Tufts Medicare Preferred HMO Basic No Rx (HMO), Tufts Medicare Preferred HMO Prime No Rx (HMO) and Tufts Medicare Preferred HMO Smart Saver Rx (HMO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Networks can change during the year, so confirm with the office or the plan before you enroll.
Where does Sergi Martinez-Ramirez practice?
3 locations, including 15 Parkman Street, Boston, MA. All of them are listed on this page.
How do I confirm Sergi is in my plan's network?
Call the member services number on your plan card and give them the NPI 1396125217, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
Patients can use Silverpath to find practices and check plan networks in Suffolk and Essex counties, MA. Tell us which plans you take, or want to take, and we'll keep this page accurate and talk with you about reaching more Medicare patients and carriers.