2026 NPPES data Family Medicine Physician NPI 1154396927 MD
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GERALD SULLIVAN, MD

Family Medicine Physician in PUTNAM, 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
6K
Medicare Part D claims · 498 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GERALD SULLIVAN, MD filed 6,015 Medicare Part D claims in 2023 as a Family Medicine Physician in PUTNAM, Connecticut, prescribing 88% generic.

6K
Part D claims, 2023
88%
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.

GERALD SULLIVAN, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

6,015 Top 5% higher than 95% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

GERALD SULLIVAN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 GERALD SULLIVAN, MD?

Quality data not reported

NPI registry status

Active

Issued 02/23/2006

NPI 1154396927

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

6,015 76% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Connecticut

How Family Medicine Physician compares to other specialties among Connecticut providers

Connecticut providers

Family Medicine Physician share within Connecticut

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

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

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).

GERALD SULLIVAN, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 7 KENNEDY DR, PUTNAM, CT, 06260, with a listed phone of (860) 928-6541. NPI 1154396927 was issued on 02/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SULLIVAN 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 6,015 prescription claims written by this provider, covering 498 Medicare beneficiaries and totaling roughly $668K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 5.0%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

7 KENNEDY DR
PUTNAM, CT 06260

Provider Details

NPI 1154396927
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 02/23/2006

Hospital and facility affiliations

Facilities where GERALD SULLIVAN, 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.

DAY KIMBALL MEDICAL GROUP INC
PUTNAM, 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).

Brand vs generic prescribing mix · Typical

GERALD SULLIVAN, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 6,015 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.

6,015
Total Claims
$668K
Total Drug Cost
498
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,069
Total Day Supply
380,414
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$484K
Generic Drug Cost
$183K
Opioid Claims
299 (5.0% rate)
Antibiotic Claims
106

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.19
Gender Split
56% female / 44% male
Age Distribution
<65: 56, 65-74: 237, 75-84: 140, 85+: 65

Top Prescribed Drugs (Medicare Part D)

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

What GERALD SULLIVAN, 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
Atorvastatin Calcium
353
Levothyroxine Sodium
207
Metoprolol Succinate
196
Losartan Potassium
192
Lisinopril
185
Amlodipine Besylate
178
Gabapentin
168
Famotidine
148
Furosemide
125
Simvastatin
124

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

Family Medicine Physician Overview

How GERALD SULLIVAN, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

GERALD SULLIVAN, MD's 6,015 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Connecticut

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GERALD SULLIVAN, MD's specialty?
GERALD SULLIVAN, MD specializes in Family Medicine Physician and practices in PUTNAM, Connecticut. Credentials: MD.
How much does GERALD SULLIVAN, MD prescribe under Medicare Part D?
In 2023, GERALD SULLIVAN, MD wrote 6,015 Medicare Part D claims totaling $668K in drug costs for 498 beneficiaries.
Where is GERALD SULLIVAN, MD located?
GERALD SULLIVAN, MD is located at 7 KENNEDY DR, PUTNAM, CT, 06260. Phone: (860) 928-6541.
What is GERALD SULLIVAN, MD's NPI number?
GERALD SULLIVAN, MD's National Provider Identifier (NPI) is 1154396927, issued on 02/23/2006.
Does GERALD SULLIVAN, MD prescribe more brand-name or generic drugs?
GERALD SULLIVAN, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $484K in brand drug costs.
Does GERALD SULLIVAN, MD prescribe opioids?
Yes, GERALD SULLIVAN, MD had 299 opioid claims in 2023 with an opioid prescribing rate of 5.0%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does GERALD SULLIVAN, MD prescribe most often?
Based on 2023 Medicare Part D data, GERALD SULLIVAN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GERALD SULLIVAN, MD accept Medicare?
GERALD SULLIVAN, MD appears in CMS Medicare data with 6,015 Part D claims and 498 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GERALD SULLIVAN, MD's credentials?
GERALD SULLIVAN, MD's NPI is 1154396927 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.
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