2026 NPPES data Obstetrics & Gynecology Physician NPI 1992809982 MD
Verify on CMS →

GARY BESSER, MD

Obstetrics & Gynecology Physician in STAMFORD, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
744
Medicare Part D claims · 204 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.8646/100
▲ 7 pts above national avg 83.1 · [object Object]
Industry payments
$1.1K
46 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GARY BESSER, MD reported a CMS MIPS final score of 89.8646/100 — above the 83.1 national average — and filed 744 Medicare Part D claims in 2023.

89.8646/100
MIPS score · +7 vs avg
744
Part D claims, 2023
69%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

GARY BESSER, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

90 Top 42% higher than 58% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

GARY BESSER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about GARY BESSER, MD?

High performer (top quartile)

NPI registry status

Active

Issued 09/11/2006

NPI 1992809982

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

744 316% vs specialty avg

2023 prescription claims

Specialty avg: 179

MIPS final score

89.8646/100 6.7646000000000015% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Obstetrics & Gynecology Physician compares to other specialties among Connecticut providers

Connecticut providers

Obstetrics & Gynecology Physician share within Connecticut

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Connecticut

Medicare quality performance — MIPS

GARY BESSER, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average

High performer (top quartile)
MIPS Final Score
89.8646/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics & Gynecology Physician) — 89.8646/100 vs national avg 83.1

0%100%National avg83%89.9%
MIPS final score (Obstetrics & Gynecology Physician) — 89.8646/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

GARY BESSER, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 190 W BROAD ST, STAMFORD, CT, 06902, with a listed phone of (203) 325-4321. NPI 1992809982 was issued on 09/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BESSER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 744 prescription claims written by this provider, covering 204 Medicare beneficiaries and totaling roughly $129K in drug spend, split 31% brand-name and 69% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.8646/100 for the 2023 performance year (Quality 93.1713, Cost 73.044), compared with the national average of 83.1.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

190 W BROAD ST
STAMFORD, CT 06902

Provider Details

NPI 1992809982
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Male
NPI Issued 09/11/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

89.8646
Final Score
Avg: 83.1
93.1713
Quality
73.044
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where GARY BESSER, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

PHYSICIANS FOR WOMEN'S HEALTH, LLC
STAMFORD, CT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for GARY BESSER, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

Sumitomo Pharma America, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

GARY BESSER, MD — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 744 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

744
Total Claims
$129K
Total Drug Cost
204
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,484
Total Day Supply
40,859
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$91K
Generic Drug Cost
$37K
Antibiotic Claims
56

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
0.80
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What GARY BESSER, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Estradiol
131
Raloxifene Hcl
40
Yuvafem
Estradiol
38
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
36
Imvexxy
Estradiol
33
Clotrimazole-Betamethasone
Clotrimazole/Betamethasone Dip
32
Gemtesa
Vibegron
30
Estradiol-Norethindrone Acetat
Estradiol/Norethindrone Acet
21
Fluconazole
21
Oxybutynin Chloride Er
Oxybutynin Chloride
19

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Obstetrics & Gynecology Physician Overview

How GARY BESSER, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

GARY BESSER, MD's 744 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as BESSER.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GARY BESSER, MD's specialty?
GARY BESSER, MD specializes in Obstetrics & Gynecology Physician and practices in STAMFORD, Connecticut. Credentials: MD.
How much does GARY BESSER, MD prescribe under Medicare Part D?
In 2023, GARY BESSER, MD wrote 744 Medicare Part D claims totaling $129K in drug costs for 204 beneficiaries.
What is GARY BESSER, MD's Medicare quality score?
GARY BESSER, MD has a CMS MIPS Final Score of 89.8646/100 (Quality: 93.1713, Cost: 73.044). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GARY BESSER, MD located?
GARY BESSER, MD is located at 190 W BROAD ST, STAMFORD, CT, 06902. Phone: (203) 325-4321.
What is GARY BESSER, MD's NPI number?
GARY BESSER, MD's National Provider Identifier (NPI) is 1992809982, issued on 09/11/2006.
Does GARY BESSER, MD prescribe more brand-name or generic drugs?
GARY BESSER, MD's prescribing is 31% brand-name and 69% generic drugs by claim count, with $91K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does GARY BESSER, MD prescribe most often?
Based on 2023 Medicare Part D data, GARY BESSER, MD's most frequently prescribed drugs include Estradiol, Raloxifene Hcl, Yuvafem. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GARY BESSER, MD accept Medicare?
GARY BESSER, MD appears in CMS Medicare data with 744 Part D claims and 204 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GARY BESSER, MD's credentials?
GARY BESSER, MD's NPI is 1992809982 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology