NPPES file of Aug 9, 2026

Robert E. Belknap, MD

Adult Medicine Physician · Mill Valley, CA

Robert E. Belknap, MD is an adult medicine physician with a practice address in Mill Valley, California, and NPI 1336217306, issued on Nov 30, 2006. Check the license (California A24275, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336217306
Name
Robert E. Belknap
Credential
MD
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
A24275 CA
Self-reported in NPPES; status is on the state search
Practice location
655 Redwood Hwy, Mill Valley, CA 94941
Phone
(415) 384-0506
Enumerated
Nov 30, 2006
Record last updated
Apr 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
00A242750 CA
Medicare enrollment
Enrolled (PECOS I20080423000434); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 1970
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 655 Redwood Hwy

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

  1. Carolyn Bray, PHDClinical Psychologist1275391419
  2. Ashley Burnett, PA-CMedical Physician Assistant1265118350
  3. Grace Dammann, M.D.Internal Medicine Physician1558406736
  4. Kristine Duffin, CPClinical Psychologist1245277193
  5. Jeffrey Etemad, D.O.Neuromusculoskeletal Medicine & OMM Physician1093803983
  6. Alison Lavoy, M.D.Internal Medicine Physician1407871197

Verify Robert E. Belknap in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A24275
    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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43% more Medicare Part D claims than the average adult medicine physician in 2024

4,283 Medicare Part D claims for 220 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. 116 claims were for opioids.

  1. Robert Belknap4,283
  2. Specialty average3,002

Most prescribed

  1. Levothyroxine Sodium164 claims
  2. Atorvastatin Calcium151 claims
  3. Gabapentin137 claims
  4. Amlodipine Besylate135 claims
  5. Rosuvastatin Calcium124 claims
  6. Losartan Potassium112 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.9
  2. Costout of 100 · 30%36.9
  3. Promoting interoperabilityout of 100 · 25%92.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Robert E. Belknap among 386 adult medicine physician records in California

Robert E. Belknap, MD is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1970 · median 2005 among the 187 with a school on file
  • Record last updated2008 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in California

There are 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Jonathan Delson, MDNovato, CA 949451891774113
  2. Gail Altschuler, M.D.Novato, CA 949471972642098
  3. Michael Steward, MDNovato, CA 949471932395712
  4. Tammy Hunter-Horton, FNP-BCCorte Madera, CA 949251366373185
  5. Geoffrey Collins, M.D.Belvedere, CA 949201295123701
  6. William Williams, MDSan Quentin, CA 949641407034473
  7. John Andrew, M.D.Greenbrae, CA 949041841220209
  8. Jonathan Dietz, D.O.San Rafael, CA 949011366566499

Common questions

What is Robert E. Belknap, MD's NPI number?

Robert E. Belknap, MD's National Provider Identifier (NPI) is 1336217306, issued on Nov 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert E. Belknap, MD located?

The NPPES record lists a practice address at 655 Redwood Hwy, Mill Valley, CA, 94941. Phone: (415) 384-0506. Providers update this record themselves, so call before visiting.

How can I verify Robert E. Belknap, MD's license?

NPPES lists California license number A24275, 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 Robert E. Belknap, MD prescribe under Medicare Part D?

In 2024, Robert E. Belknap, MD had 4,283 Medicare Part D claims for 220 beneficiaries; the average among adult medicine physician prescribers was 3,002. Part D covers Medicare prescriptions only.

What is Robert E. Belknap, MD's MIPS final score?

The 2023 MIPS final score is 73.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.