2026 NPPES data Internal Medicine Physician NPI 1326100512 M.D.
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NANCY GOODWIN, M.D.

Internal Medicine Physician in BRUNSWICK, 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
984
Medicare Part D claims · 178 beneficiaries · Internal Medicine Physician avg: 3K

What the federal data shows

NANCY GOODWIN, M.D. filed 984 Medicare Part D claims in 2023 as a Internal Medicine Physician in BRUNSWICK, Maine.

984
Part D claims, 2023

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.

NANCY GOODWIN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

984 Top 25% higher than 75% 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%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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-eligible specialty (heuristic — not verified)

NANCY GOODWIN, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about NANCY GOODWIN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/14/2006

NPI 1326100512

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

984 64% 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).

NANCY GOODWIN, M.D. is a Internal Medicine Physician provider practicing in BRUNSWICK, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1326100512. 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.

NANCY GOODWIN, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 329 MAINE ST, BRUNSWICK, ME, 04011, with a listed phone of (207) 725-2429. NPI 1326100512 was issued on 12/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GOODWIN 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 984 prescription claims written by this provider, covering 178 Medicare beneficiaries and totaling roughly $81K in drug spend. 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

329 MAINE ST
BRUNSWICK, ME 04011

Provider Details

NPI 1326100512
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 12/14/2006

Medicare Part D Prescribing Data

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

984
Total Claims
$81K
Total Drug Cost
178
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,362
Total Day Supply
70,169
Generic Drug Cost
$16K

Patient Demographics

Average Patient Age
77.4 years
Avg HCC Risk Score
1.02
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Losartan Potassium
71
Amlodipine Besylate
63
Atorvastatin Calcium
60
Hydrochlorothiazide
58
Levothyroxine Sodium
53
Simvastatin
51
Metoprolol Succinate
48
Lisinopril
33
Metoprolol Tartrate
32
Metformin Hcl
24

* 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 NANCY GOODWIN, M.D. 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

NANCY GOODWIN, M.D.'s 984 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 GOODWIN.

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

Frequently Asked Questions

What is NANCY GOODWIN, M.D.'s specialty?
NANCY GOODWIN, M.D. specializes in Internal Medicine Physician and practices in BRUNSWICK, Maine. Credentials: M.D..
How much does NANCY GOODWIN, M.D. prescribe under Medicare Part D?
In 2023, NANCY GOODWIN, M.D. wrote 984 Medicare Part D claims totaling $81K in drug costs for 178 beneficiaries.
Where is NANCY GOODWIN, M.D. located?
NANCY GOODWIN, M.D. is located at 329 MAINE ST, BRUNSWICK, ME, 04011. Phone: (207) 725-2429.
What is NANCY GOODWIN, M.D.'s NPI number?
NANCY GOODWIN, M.D.'s National Provider Identifier (NPI) is 1326100512, issued on 12/14/2006.
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 NANCY GOODWIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NANCY GOODWIN, M.D.'s most frequently prescribed drugs include Losartan Potassium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY GOODWIN, M.D. accept Medicare?
NANCY GOODWIN, M.D. appears in CMS Medicare data with 984 Part D claims and 178 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY GOODWIN, M.D.'s credentials?
NANCY GOODWIN, M.D.'s NPI is 1326100512 with credentials M.D.. 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