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2026 NPPES data Neurology Physician NPI 1477649903 M.D.
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Clarence Barr, M.D.

Neurology Physician in Birmingham, Alabama.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 20,467 in Neurology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
30
Medicare Part D claims · 16 beneficiaries · Neurology Physician avg: 1K
MIPS score
81/100
▼ 2 pts below national avg 83.5 · Above neutral
Industry payments
$214.12
3 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Clarence Barr, M.D. reported a CMS MIPS final score of 81/100 - below the 83.5 national average - and filed 30 Medicare Part D claims in 2024.

81/100
MIPS score · -2 vs avg
30
Part D claims, 2024
Likely
board-certified (heuristic)
≥32nd
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Clarence Barr, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1477649903), first enumerated 10/04/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 30 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 81/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $214.12 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1477649903 · Neurology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1477649903
  • ENUM-LEGACY 2006
  • TAX-MID 20K Neurology Physician
  • MIPS-INLINE 81/100
  • RX-TRACE 30
  • BOOK-THIN 231 in Alabama
  • PHOTO-FINISH Nancy Cao · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Clarence Barr, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

81 ≥ 32nd percentile 32% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Clarence Barr, M.D. sits

This provider among neurology physician peers

Across the 5,099 neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Clarence Barr, M.D. writes more Part D claims than 5% of them and scores higher on MIPS quality than 37% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 18Clarence Barr, M.D., Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 37
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one neurology physician peer from a representative sample of 60; the gold marker is Clarence Barr, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Clarence Barr, M.D. 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 Clarence Barr, M.D.?

Near national average

NPI registry status

Active

Issued 10/04/2006

NPI 1477649903

Primary specialty

Neurology Physician

Mid-sized

20,467 US NPIs in this specialty

Medicare Part D claims

30 98% vs specialty avg

2024 prescription claims

Specialty avg: 1,356

MIPS final score

81/100 2.5 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Alabama

How Neurology Physician compares to other specialties among Alabama providers

Alabama providers
Student in an Organized Heal…8.4%Pharmacist6.6%Family Nurse Practitioner5.9%Behavior Technician4.7%Physical Therapist4.2%Mental Health Counselor3.4%Neurology Physician0.3%
Largest specialties in Alabama (% of in-state providers)

Medicare quality performance, MIPS

Clarence Barr, M.D.'s 2023 MIPS final score plotted against the Neurology Physician national average

Near national average
MIPS Final Score
81/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%81%
MIPS final score (Neurology Physician) - 81/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

832 PRINCETON AVE SW
Birmingham, AL 35211
(205) 503-4281

Provider Details

NPI 1477649903
Specialty Neurology Physician
Credentials M.D.
Gender Male
NPI Issued 10/04/2006

CMS Quality Score (MIPS)

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

81.0318
Final Score
Measured-score avg: 83.5
70.6865
Quality
66.0862
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Clarence Barr, M.D. 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.

Baptist Health Centers LLC
Birmingham, AL

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 Clarence Barr, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$214

Largest payer

EMD Serono, Inc.

Most common payment type

Food and Beverage

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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

30
Total Claims
$664
Total Drug Cost
16
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
55
Total Day Supply
1,563
Brand Drug Cost
$0
Generic Drug Cost
$664

Patient Demographics

Average Patient Age
74.4 years
Avg HCC Risk Score
2.48
More Neurology Physician in AL → All providers in Alabama → Compare specialties →

Neurology Physician Overview

How Clarence Barr, M.D. fits within the Neurology Physician landscape nationally.

20,467
Neurology Physician Providers in US
54
States with Neurology Physician
1,356
Avg Claims per Provider

Clarence Barr, M.D.'s 30 claims are below the specialty average of 1,356.

Nationwide Neurology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Barr, both outside Alabama so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (81 here).

David McCoy 81 OK Nancy Cao 81 MI Basad Essa 81 MI Rebbeca Grysiewicz 81 MI

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Michael Newmark Houston, TX Jon Grudem North Sioux City, SD Omotola Hope Houston, TX Sadia Saba Avon, IN

Nearby Neurology Physician Providers in Alabama

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

One of 231 Neurology Physician providers enrolled in Alabama, 5 are shown here.

Shruti Agnihotri
Birmingham, AL
Dr. Mohammad Aladawi
MD
Birmingham, AL
Dr. Anjaneyulu Alapati
M.D.
Huntsville, AL
Dr. Muhammad Ali
M.D.
Jasper, AL
Dr. Amit Arora
M.D.
Huntsville, AL

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

Frequently Asked Questions

What is Clarence Barr, M.D.'s specialty? ▼
Clarence Barr, M.D. specializes in Neurology Physician and practices in Birmingham, Alabama. Credentials: M.D..
How much does Clarence Barr, M.D. prescribe under Medicare Part D? ▼
In 2024, Clarence Barr, M.D. wrote 30 Medicare Part D claims totaling $664 in drug costs for 16 beneficiaries.
What is Clarence Barr, M.D.'s Medicare quality score? ▼
Clarence Barr, M.D. has a CMS MIPS Final Score of 81/100 (Quality: 70.7, Cost: 66.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Clarence Barr, M.D. located? ▼
Clarence Barr, M.D. is located at 832 PRINCETON AVE SW, Birmingham, AL, 35211. Phone: (205) 503-4281.
What is Clarence Barr, M.D.'s NPI number? ▼
Clarence Barr, M.D.'s National Provider Identifier (NPI) is 1477649903, issued on 10/04/2006.
How many Neurology Physician providers are there in the US? ▼
There are 20,467 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,356 Medicare Part D claims per year.
Does Clarence Barr, M.D. accept Medicare? ▼
Clarence Barr, M.D. appears in CMS Medicare data with 30 Part D claims and 16 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clarence Barr, M.D.'s credentials? ▼
Clarence Barr, M.D.'s NPI is 1477649903 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

View source datasets and methodology notes
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 (2024). 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 August 2026 (NPPES) / 2024 (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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.