2026 NPPES data Gynecology Physician NPI 1326269374 MD
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MIRIAM MARCUM, MD

Gynecology Physician in LEXINGTON, Kentucky. 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
69
Medicare Part D claims · 12 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
What the federal data reveals: MIRIAM MARCUM, MD is a Gynecology Physician ([object Object]) practicing in LEXINGTON, Kentucky with a Medicare Part D prescribing footprint of 69 claims across 12 beneficiaries — 38% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: MIRIAM MARCUM, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 69 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MIRIAM MARCUM, 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).

MIRIAM MARCUM, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/01/2007

NPI 1326269374

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

69 77% vs specialty avg

2023 prescription claims

Specialty avg: 295

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Kentucky

How Gynecology Physician compares to other specialties among Kentucky providers

Kentucky providers

Gynecology Physician share within Kentucky

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

Medicare quality performance — MIPS

MIRIAM MARCUM, MD's 2023 MIPS final score plotted against the Gynecology Physician national average

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

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

0%100%National avg83%99%
MIPS final score (Gynecology Physician) — 100/100 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).

MIRIAM MARCUM, MD is a Gynecology Physician provider practicing in LEXINGTON, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1326269374. 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.

MIRIAM MARCUM, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 125 E MAXWELL ST STE 140, LEXINGTON, KY, 40508, with a listed phone of (859) 323-0005. NPI 1326269374 was issued on 05/01/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARCUM 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 69 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $26K in drug spend, split 38% brand-name and 62% 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 100/100 for the 2023 performance year, compared with the national average of 83.1.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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

125 E MAXWELL ST STE 140
LEXINGTON, KY 40508

Provider Details

NPI 1326269374
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 05/01/2007

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MIRIAM MARCUM, 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.

KENTUCKY MEDICAL SERVICES FOUNDATION, INC
LEXINGTON, KY

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 · Above average

MIRIAM MARCUM, MD — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 69 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.

69
Total Claims
$26K
Total Drug Cost
12
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
122
Total Day Supply
3,480
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$25K
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
63.8 years
Avg HCC Risk Score
0.71
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.

Drug Claims
Lupron Depot
Leuprolide Acetate
12
Prempro
"Estrogen
N/A

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

Gynecology Physician Overview

How MIRIAM MARCUM, MD fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

MIRIAM MARCUM, MD's 69 claims are below the specialty average of 295.

Nearby Gynecology Physician Providers in Kentucky

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

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

Frequently Asked Questions

What is MIRIAM MARCUM, MD's specialty?
MIRIAM MARCUM, MD specializes in Gynecology Physician and practices in LEXINGTON, Kentucky. Credentials: MD.
How much does MIRIAM MARCUM, MD prescribe under Medicare Part D?
In 2023, MIRIAM MARCUM, MD wrote 69 Medicare Part D claims totaling $26K in drug costs for 12 beneficiaries.
What is MIRIAM MARCUM, MD's Medicare quality score?
MIRIAM MARCUM, MD has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MIRIAM MARCUM, MD located?
MIRIAM MARCUM, MD is located at 125 E MAXWELL ST STE 140, LEXINGTON, KY, 40508. Phone: (859) 323-0005.
What is MIRIAM MARCUM, MD's NPI number?
MIRIAM MARCUM, MD's National Provider Identifier (NPI) is 1326269374, issued on 05/01/2007.
Does MIRIAM MARCUM, MD prescribe more brand-name or generic drugs?
MIRIAM MARCUM, MD's prescribing is 38% brand-name and 62% generic drugs by claim count, with $25K in brand drug costs.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does MIRIAM MARCUM, MD prescribe most often?
Based on 2023 Medicare Part D data, MIRIAM MARCUM, MD's most frequently prescribed drugs include Lupron Depot, Prempro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MIRIAM MARCUM, MD accept Medicare?
MIRIAM MARCUM, MD appears in CMS Medicare data with 69 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MIRIAM MARCUM, MD's credentials?
MIRIAM MARCUM, MD's NPI is 1326269374 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