Gary S. Besser, MD
Obstetrics & Gynecology Physician · Stamford, CT
Gary S. Besser, MD is an obstetrics & gynecology physician with a practice address in Stamford, Connecticut, and NPI 1992809982, issued on Sep 11, 2006. Check the license (Connecticut 026837, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gary S. Besser
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 026837 CT
5523899 NY
Self-reported in NPPES; status is on the state search - Practice location
- 190 W Broad St, Stamford, CT 06902
- Phone
- (203) 325-4321
- Enumerated
- Sep 11, 2006
- Record last updated
- Oct 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 975-7515
- Medicare enrollment
- Enrolled (PECOS I20090817000327); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 190 W Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karishma Bellara, PASleep Medicine (Internal Medicine) Physician1013052521
- Lisa Dishongh, MDObstetrics & Gynecology Physician1912001900
- George Heading, MDObstetrics & Gynecology Physician1548364532
- Astrid Hoffmann-Olsen, MDObstetrics & Gynecology Physician1497859581
- John Kazianis, M.D.Pulmonary Disease Physician1730348418
- Lester Krasnogor, M.D.Pulmonary Disease Physician1134157787
Verify Gary S. Besser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 026837Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.2 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
864 Medicare Part D claims for 243 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Estradiol159 claims
- Premarin53 claims
- Yuvafem49 claims
- Clotrimazole-Betamethasone47 claims
- Raloxifene Hcl47 claims
- Nitrofurantoin Mono-Macro37 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): 89.9 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).
Industry payments in 2024: $1,051.38
46 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Physicians For Women's Health, LLCStamford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
37 obstetrics & gynecology physician records list a practice address in Stamford
They are 37 of the 2,774 NPPES records with a practice address in Stamford, and 707 obstetrics & gynecology physician records in Connecticut.
All 37 in Stamford → All 707 in Connecticut → Every provider in Stamford →
Other obstetrics & gynecology physician records in Connecticut
- Anne Abbate, MDBridgeport, CT1497323562
- Roxanne Abder, MDTrumbull, CT1790840809
- Patricia Abruna, M.D.Fairfield, CT1023246832
- Ami Acharya, M.D.Hamden, CT1437131760
- Marie Achong, M.D.Hartford, CT1700806213
- Elizabeth Ackley, M.D.New Haven, CT1316474091
- Sharon Adler, MDBristol, CT1235148438
- Chaarushi Ahuja, MDNew Haven, CT1851965347
- Sarp Aksel, M.D.Stamford, CT1245611441
- Roa Alammari, MDMansfield Center, CT1861782807
Common questions
What is Gary S. Besser, MD's NPI number?
Gary S. Besser, MD's National Provider Identifier (NPI) is 1992809982, issued on Sep 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary S. Besser, MD located?
The NPPES record lists a practice address at 190 W Broad St, Stamford, CT, 06902. Phone: (203) 325-4321. Providers update this record themselves, so call before visiting.
How can I verify Gary S. Besser, MD's license?
NPPES lists Connecticut license number 026837, 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 Gary S. Besser, MD prescribe under Medicare Part D?
In 2024, Gary S. Besser, MD had 864 Medicare Part D claims for 243 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Gary S. Besser, MD's MIPS final score?
The 2023 MIPS final score is 89.9 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.