2026 NPPES data Internal Medicine Physician NPI 1235499237 MD
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DAVID COHEN, MD

Internal Medicine Physician in SOUTH PORTLAND, Maine. 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
2K
Medicare Part D claims · 330 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
44%
generic claims · 56% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.3K
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVID COHEN, MD is a Internal Medicine Physician ([object Object]) practicing in SOUTH PORTLAND, Maine with a Medicare Part D prescribing footprint of 2K claims across 330 beneficiaries — 56% brand-name prescribing . Industry payments of $1.3K across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVID COHEN, MD filed 2,394 Medicare Part D claims in 2023 across SOUTH PORTLAND, Maine. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DAVID COHEN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

DAVID COHEN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 05/23/2012

NPI 1235499237

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,394 12% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Maine

How Internal Medicine Physician compares to other specialties among Maine providers

Maine providers

Internal Medicine Physician share within Maine

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Internal 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).

DAVID COHEN, MD is a Internal Medicine Physician provider practicing in SOUTH PORTLAND, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1235499237. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

DAVID COHEN, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 100 FODEN RD STE 103B, SOUTH PORTLAND, ME, 04106, with a listed phone of (207) 828-1122. NPI 1235499237 was issued on 05/23/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COHEN 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 2,394 prescription claims written by this provider, covering 330 Medicare beneficiaries and totaling roughly $2.2 million in drug spend, split 56% brand-name and 44% 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

100 FODEN RD STE 103B
SOUTH PORTLAND, ME 04106

Provider Details

NPI 1235499237
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 05/23/2012

Hospital and facility affiliations

Facilities where DAVID COHEN, 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.

CHEST MEDICINE ASSOCIATES PA
SOUTH PORTLAND, ME
MAINEHEALTH
PORTLAND, ME
MERCY HOSPITAL
PORTLAND, ME

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 DAVID COHEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.3K

Largest payer

INTUITIVE SURGICAL, INC.

Most common payment type

Travel and Lodging

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 · Brand-heavy

DAVID COHEN, MD — brand share 56.0%
Specialty average (est.)

56% brand-name claims vs 44% generic, on 2,394 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.

2,394
Total Claims
$2.2M
Total Drug Cost
330
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,027
Total Day Supply
83,839
Brand vs Generic
56% brand / 44% generic
Brand Drug Cost
$2.0M
Antibiotic Claims
178

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.69
Gender Split
60% female / 40% male
Age Distribution
<65: 41, 65-74: 137, 75-84: 121, 85+: 31

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisone
241
Symbicort
Budesonide/Formoterol Fumarate
183
Albuterol Sulfate Hfa
Albuterol Sulfate
172
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
156
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
152
Breo Ellipta
Fluticasone/Vilanterol
149
Omeprazole
122
Azithromycin
121
Montelukast Sodium
104
Incruse Ellipta
Umeclidinium Bromide
89

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

Internal Medicine Physician Overview

How DAVID COHEN, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

DAVID COHEN, MD's 2,394 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Maine

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

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

Frequently Asked Questions

What is DAVID COHEN, MD's specialty?
DAVID COHEN, MD specializes in Internal Medicine Physician and practices in SOUTH PORTLAND, Maine. Credentials: MD.
How much does DAVID COHEN, MD prescribe under Medicare Part D?
In 2023, DAVID COHEN, MD wrote 2,394 Medicare Part D claims totaling $2.2M in drug costs for 330 beneficiaries.
Where is DAVID COHEN, MD located?
DAVID COHEN, MD is located at 100 FODEN RD STE 103B, SOUTH PORTLAND, ME, 04106. Phone: (207) 828-1122.
What is DAVID COHEN, MD's NPI number?
DAVID COHEN, MD's National Provider Identifier (NPI) is 1235499237, issued on 05/23/2012.
Does DAVID COHEN, MD prescribe more brand-name or generic drugs?
DAVID COHEN, MD's prescribing is 56% brand-name and 44% generic drugs by claim count, with $2.0M in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does DAVID COHEN, MD prescribe most often?
Based on 2023 Medicare Part D data, DAVID COHEN, MD's most frequently prescribed drugs include Prednisone, Symbicort, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID COHEN, MD accept Medicare?
DAVID COHEN, MD appears in CMS Medicare data with 2,394 Part D claims and 330 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID COHEN, MD's credentials?
DAVID COHEN, MD's NPI is 1235499237 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