Nathaniel AltavasMSN, PMHNP-BC, FNP-C
Nurse Practitioner, Family
2027 Medicare Advantage
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Medicare Advantage plans for Santa Clara County, CA and Clark County, NV.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
Listed on 4 plans so far
Some of Aetna Medicare, Anthem Blue Cross, Alignment Health Plan, Astiva Health, Blue Shield of California, Champion Health Plan, HealthSpring, Humana, Imperial Health Plan of California, Inc., Kaiser Permanente, Santa Clara Family Health Plan, SCAN Health Plan, Select Health, UnitedHealthcare and Wellcare's 2027 plans in Santa Clara County, CA and Clark County, NV haven't been checked yet.
The 105 Medicare Advantage plans we show for Santa Clara County, CA and Clark County, NV in 2027
- 4 list Nathaniel
- 30 not listed
- 71 not checked yet

Aetna Medicare
3 plans list Nathaniel.
Aetna Medicare Eagle (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2710 Gateway Oaks Dr, Ste 150N, Sacramento, CA, 95833
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2710 Gateway Oaks Dr, Ste 150N, Sacramento, CA, 95833
This result applies to these offices. Other locations are not confirmed.
$102a monthAetna Medicare Signature Extra (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2710 Gateway Oaks Dr, Ste 150N, Sacramento, CA, 95833
This result applies to these offices. Other locations are not confirmed.
$104a month
11 more Aetna Medicare plans haven't been checked yet.

Anthem Blue Cross · Anthem Blue Cross and Blue Shield
1 plan lists Nathaniel.
Anthem Full Dual Advantage Aligned (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 99 Almaden Blvd, San Jose, CA, 95113
- 325 S 1st St, San Jose, CA, 95113
- 5201 Great America Pkwy, Santa Clara, CA, 95054
- 3753 Howard Hughes Pkwy, Las Vegas, NV, 89169
- 2300 W Sahara Ave, Henderson, NV, 89014
- 1489 W Warm Springs Rd, Henderson, NV, 89014
This result applies to these offices. Other locations are not confirmed.
$0a month
7 more Anthem Blue Cross plans haven't been checked yet.

Alignment Health Plan
Not checked yet.
6 more Alignment Health Plan plans haven't been checked yet.

Astiva Health
Not listed on its 3 plans here. That isn't proof they're out of network.

Blue Shield of California
Not listed on its 1 plan here. That isn't proof they're out of network.

Champion Health Plan
Not checked yet.

HealthSpring
Not checked yet.

Humana
Not checked yet.

Imperial Health Plan of California, Inc.
Not listed on its 4 plans here. That isn't proof they're out of network.

Kaiser Permanente
Not listed on its 3 plans here. That isn't proof they're out of network.

Santa Clara Family Health Plan
Not listed on its 1 plan here. That isn't proof they're out of network.

SCAN Health Plan
Not checked yet.
4 more SCAN Health Plan plans haven't been checked yet.

Select Health
Not checked yet.

UnitedHealthcare
Not checked yet.

Wellcare
Not checked yet.
Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.
Can't find your plan?Tell us the plan you have, and a licensed Silverpath advisor will check whether Nathaniel takes it. Free.
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 22, 2026
Where they practice
2 practice locations
- NPI issued
- 2015
- Registry record updated
- Jan 30, 2025
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Nathaniel Altavas?
In Santa Clara County, CA and Clark County, NV, 4 Medicare Advantage plans for 2027 list Nathaniel in provider data from Medicare.gov or the carrier, including Aetna Medicare Eagle (HMO), Aetna Medicare Signature (HMO) and Aetna Medicare Signature Extra (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 Nathaniel Altavas practice?
2 locations, including 99 Almaden Blvd Ste 600, San Jose, CA. All of them are listed on this page.
How do I confirm Nathaniel is in my plan's network?
Call the member services number on your plan card and give them the NPI 1790167146, 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 Santa Clara County, CA and Clark County, NV. 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.