2026 NPPES data Neurology Physician NPI 1598741670 MD
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MARIA SAM, MD

Neurology Physician in WINSTON SALEM, North Carolina. 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
848
Medicare Part D claims · 74 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.3/100
▲ 15 pts above national avg 83.1 · [object Object]

What the federal data shows

MARIA SAM, MD reported a CMS MIPS final score of 98.3/100 — above the 83.1 national average — and filed 848 Medicare Part D claims in 2023.

98.3/100
MIPS score · +15 vs avg
848
Part D claims, 2023
63%
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.

MARIA SAM, MD's MIPS score vs every scored U.S. clinician

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

98 Top 11% higher than 89% 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%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

MARIA SAM, 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 MARIA SAM, MD?

High performer (top quartile)

NPI registry status

Active

Issued 12/20/2005

NPI 1598741670

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

848 35% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

98.3/100 15.200000000000003% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in North Carolina

How Neurology Physician compares to other specialties among North Carolina providers

North Carolina providers

Neurology Physician share within North Carolina

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within North Carolina

Medicare quality performance — MIPS

MARIA SAM, MD's 2023 MIPS final score plotted against the Neurology Physician national average

High performer (top quartile)
MIPS Final Score
98.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 98.3/100 vs national avg 83.1

0%100%National avg83%98.3%
MIPS final score (Neurology Physician) — 98.3/100 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).

MARIA SAM, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at MEDICAL CENTER BLVD, WINSTON SALEM, NC, 27157, with a listed phone of (336) 716-2255. NPI 1598741670 was issued on 12/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SAM 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 848 prescription claims written by this provider, covering 74 Medicare beneficiaries and totaling roughly $629K in drug spend, split 37% brand-name and 63% 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 98.3/100 for the 2023 performance year, compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157

Provider Details

NPI 1598741670
Specialty Neurology Physician
Credentials MD
Gender Female
NPI Issued 12/20/2005

CMS Quality Score (MIPS)

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

98.3
Final Score
Avg: 83.1
98
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARIA SAM, 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.

WAKE FOREST UNIVERSITY HEALTH SCIENCES
WINSTON SALEM, NC

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

MARIA SAM, MD — brand share 37.0%
Specialty average (est.)

37% brand-name claims vs 63% generic, on 848 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.

848
Total Claims
$629K
Total Drug Cost
74
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,306
Total Day Supply
38,535
Brand vs Generic
37% brand / 63% generic
Brand Drug Cost
$562K
Generic Drug Cost
$66K

Patient Demographics

Average Patient Age
57.0 years
Avg HCC Risk Score
1.06
Gender Split
58% female / 42% male
Age Distribution
<65: 45, 65-74: 17, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What MARIA SAM, 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
Xcopri
Cenobamate
88
Lamictal
Lamotrigine
74
Levetiracetam
64
Carbamazepine Er
Carbamazepine
51
Keppra
Levetiracetam
43
Clobazam
41
Lamotrigine
36
Lorazepam
31
Topiramate
28
Divalproex Sodium
26

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

Neurology Physician Overview

How MARIA SAM, MD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

MARIA SAM, MD's 848 claims are below the specialty average of 1,309.

Nearby Neurology Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as SAM.

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

Frequently Asked Questions

What is MARIA SAM, MD's specialty?
MARIA SAM, MD specializes in Neurology Physician and practices in WINSTON SALEM, North Carolina. Credentials: MD.
How much does MARIA SAM, MD prescribe under Medicare Part D?
In 2023, MARIA SAM, MD wrote 848 Medicare Part D claims totaling $629K in drug costs for 74 beneficiaries.
What is MARIA SAM, MD's Medicare quality score?
MARIA SAM, MD has a CMS MIPS Final Score of 98.3/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARIA SAM, MD located?
MARIA SAM, MD is located at MEDICAL CENTER BLVD, WINSTON SALEM, NC, 27157. Phone: (336) 716-2255.
What is MARIA SAM, MD's NPI number?
MARIA SAM, MD's National Provider Identifier (NPI) is 1598741670, issued on 12/20/2005.
Does MARIA SAM, MD prescribe more brand-name or generic drugs?
MARIA SAM, MD's prescribing is 37% brand-name and 63% generic drugs by claim count, with $562K in brand drug costs.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does MARIA SAM, MD prescribe most often?
Based on 2023 Medicare Part D data, MARIA SAM, MD's most frequently prescribed drugs include Xcopri, Lamictal, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIA SAM, MD accept Medicare?
MARIA SAM, MD appears in CMS Medicare data with 848 Part D claims and 74 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIA SAM, MD's credentials?
MARIA SAM, MD's NPI is 1598741670 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