NPPES file of Aug 9, 2026

Maya Shaena Shaw

Family Medicine Physician · Martinez, CA

Maya Shaena Shaw is a family medicine physician with a practice address in Martinez, California, and NPI 1831336700, issued on Jan 14, 2009. Check the license (California A105991, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831336700
Name
Maya Shaena Shaw
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A105991 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Alhambra Ave, Martinez, CA 94553
Phone
(925) 370-5110
Enumerated
Jan 14, 2009
Record last updated
Feb 11, 2022
Fax
(925) 370-5142
Medicare enrollment
Enrolled (PECOS I20111213000355); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2006
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2500 Alhambra Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Pyra Aarden, MDEmergency Medicine Physician1417058199
  2. Zohaib AbbasiPsychiatry Physician1013392224
  3. Lolita AdonaFamily Nurse Practitioner1821110925
  4. Namita AgarwalPediatrics Physician1467626341
  5. Edward AgyekumDentist1124196696
  6. Abid Ahmed, M.D.Internal Medicine Physician1346531001

Verify Maya Shaena Shaw in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A105991
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3% fewer Medicare Part D claims than the average family medicine physician in 2024

3,420 Medicare Part D claims for 389 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 150 claims were for opioids.

  1. Maya Shaw3,420
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium284 claims
  2. Levothyroxine Sodium183 claims
  3. Amlodipine Besylate141 claims
  4. Losartan Potassium123 claims
  5. Lisinopril107 claims
  6. Metformin Hcl Er87 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Permanente Medical Group IncRichmond, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maya Shaena Shaw among 17,133 family medicine physician records in California

Maya Shaena Shaw is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.

  • NPI issued2009 · 58% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2006 · median 2005 among the 10,652 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

191 family medicine physician records list a practice address in Martinez

They are 191 of the 1,816 NPPES records with a practice address in Martinez, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Melodie Armstrong, MDMartinez, CA 945531093821779
  2. Philipp Bannwart, M.D.Martinez, CA 945531194828491
  3. Fred Beck, MDMartinez, CA 945531447348891
  4. Kenneth Brooks, MDMartinez, CA 945531528009685
  5. Scott Carter, M.D.Martinez, CA 945531306820980
  6. Christopher Farnitano, MDMartinez, CA 945531770673832
  7. David Hearst, MDMartinez, CA 945531770670531
  8. Stephen Kalkstein, MDMartinez, CA 945531356438113

Common questions

What is Maya Shaena Shaw's NPI number?

Maya Shaena Shaw's National Provider Identifier (NPI) is 1831336700, issued on Jan 14, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Maya Shaena Shaw located?

The NPPES record lists a practice address at 2500 Alhambra Ave, Martinez, CA, 94553. Phone: (925) 370-5110. Providers update this record themselves, so call before visiting.

How can I verify Maya Shaena Shaw's license?

NPPES lists California license number A105991, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maya Shaena Shaw prescribe under Medicare Part D?

In 2024, Maya Shaena Shaw had 3,420 Medicare Part D claims for 389 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.