Ann H. Williams, MD
Family Medicine Physician · Stamford, CT
Ann H. Williams, MD is a family medicine physician with a practice address in Stamford, Connecticut, and NPI 1629241625, issued on Apr 10, 2008. Check the license (Connecticut 046361, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ann H. Williams
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 046361 CT
Self-reported in NPPES; status is on the state search - Practice location
- 32 Strawberry Hill CT, Stamford, CT 06902
- Phone
- (203) 977-2566
- Enumerated
- Apr 10, 2008
- Record last updated
- Jan 10, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (203) 977-2568
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 958 in Connecticut → Look up another NPI →
Also registered at 32 Strawberry Hill CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carol Baird, CRNPFamily Nurse Practitioner1932251634
- Genie Ball, PA-CSurgical Physician Assistant1841475126
- Henry Beecher, M.D.Gastroenterology Physician1396949582
- Melissa Bertuzzi, FNP-BCFamily Nurse Practitioner1780067835
Verify Ann H. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 046361Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average family medicine physician in 2024
844 Medicare Part D claims for 187 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium83 claims
- Levothyroxine Sodium64 claims
- Escitalopram Oxalate39 claims
- Sertraline Hcl28 claims
- Trazodone Hcl25 claims
- Amlodipine Besylate24 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): 79.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Ann H. Williams among 958 family medicine physician records in Connecticut
Ann H. Williams, MD is one of 958 family medicine physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2017 · 56% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 family medicine physician records list a practice address in Stamford
They are 57 of the 2,774 NPPES records with a practice address in Stamford, and 958 family medicine physician records in Connecticut.
All 958 in Connecticut → Every provider in Stamford → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Rodrigo Acosta, M.D.Stamford, CT 069021023102092
- Anne Brewer, MDStamford, CT 069021932118577
- Joseph Connelly, MDStamford, CT 069021346261120
- Joseph Feuerstein, M.D.Stamford, CT 069021619067162
- Efraim Gomez Zapata, MDStamford, CT 069021053479998
- Krishnan Narasimhan, M.D.Stamford, CT 069021922035450
- Kathleen Nurena, M.D.Stamford, CT 069021437191954
- Jaime Rivas, M.D.Stamford, CT 069021043347537
Common questions
What is Ann H. Williams, MD's NPI number?
Ann H. Williams, MD's National Provider Identifier (NPI) is 1629241625, issued on Apr 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ann H. Williams, MD located?
The NPPES record lists a practice address at 32 Strawberry Hill CT, Stamford, CT, 06902. Phone: (203) 977-2566. Providers update this record themselves, so call before visiting.
How can I verify Ann H. Williams, MD's license?
NPPES lists Connecticut license number 046361, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ann H. Williams, MD prescribe under Medicare Part D?
In 2024, Ann H. Williams, MD had 844 Medicare Part D claims for 187 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Ann H. Williams, MD's MIPS final score?
The 2023 MIPS final score is 79.1 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.