NPPES file of Aug 9, 2026

Ann Hathaway, MD

Family Medicine Physician · San Rafael, CA

Ann Hathaway, MD is a family medicine physician with a practice address in San Rafael, California, and NPI 1093893752, issued on Nov 1, 2006. Check the license (California G42615, 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
1093893752
Name
Ann Hathaway
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G42615 CA
Self-reported in NPPES; status is on the state search
Practice location
25 Mitchell Blvd, San Rafael, CA 94903
Phone
(415) 499-0966
Enumerated
Nov 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(415) 446-0118
Medicaid ID
00G426151 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 25 Mitchell Blvd

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

  1. Seemin Dallenbach, D.C.Chiropractor1215137716
  2. Lauren Friedeman, DPTPhysical Therapist1801298930
  3. Elson Haas, M.D.Allergy & Immunology Physician1740318112
  4. Judy Lane, N.P., R.N.Adult Health Nurse Practitioner1043420896
  5. Thomas Reece, DOSports Medicine (Neuromusculoskeletal Medicine) Physician1881722247
  6. Karilee Shames, PHD, RN, A-HNCPsychiatric/Mental Health Registered Nurse1497959266

Verify Ann Hathaway in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G42615
    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

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92% fewer Medicare Part D claims than the average family medicine physician in 2024

298 Medicare Part D claims for 51 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Ann Hathaway298
  2. Specialty average3,544

Most prescribed

  1. Progesterone59 claims
  2. Estradiol (Twice Weekly)40 claims
  3. Levothyroxine Sodium36 claims
  4. Dotti28 claims
  5. Rosuvastatin Calcium21 claims
  6. Liothyronine Sodium20 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.

37 family medicine physician records list a practice address in San Rafael

They are 37 of the 3,159 NPPES records with a practice address in San Rafael, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Ann Hathaway, MD's NPI number?

Ann Hathaway, MD's National Provider Identifier (NPI) is 1093893752, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ann Hathaway, MD located?

The NPPES record lists a practice address at 25 Mitchell Blvd, San Rafael, CA, 94903. Phone: (415) 499-0966. Providers update this record themselves, so call before visiting.

How can I verify Ann Hathaway, MD's license?

NPPES lists California license number G42615, 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 Ann Hathaway, MD prescribe under Medicare Part D?

In 2024, Ann Hathaway, MD had 298 Medicare Part D claims for 51 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.