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2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1811919525 MD
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Diana Harper, MD

Physical Medicine & Rehabilitation Physician in Raleigh, North Carolina.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,618 in Physical Medicine & Rehabilitation 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
45
Medicare Part D claims · 25 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 793
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
64.9/100
▼ 19 pts below national avg 83.5 · Mid-tier
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Diana Harper, MD reported a CMS MIPS final score of 64.9/100 - below the 83.5 national average - and filed 45 Medicare Part D claims in 2024.

64.9/100
MIPS score · -19 vs avg
45
Part D claims, 2024
73%
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.

Federal trust snapshot

What official records show about Diana Harper, MD

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 1811919525), first enumerated 07/24/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 45 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 64.9/100 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

  • 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 1811919525 · Physical Medicine & Rehabilitation Physician

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

  • NPI-10 1811919525
  • ENUM-LEGACY 2006
  • TAX-MID 16K Physical Medicine
  • MIPS-LOW 64.9/100
  • RX-TRACE 45
  • BOOK-THIN 421 in North Carolina
  • PHOTO-FINISH Allan Rowley · ±0.1

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

Diana Harper, MD'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.

65 ≥ 7th percentile 7% 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%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 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 Diana Harper, MD sits

This provider among physical medicine & rehabilitation physician peers

Across the 2,483 physical medicine & rehabilitation physician providers who report both Medicare Part D prescribing and a MIPS quality score, Diana Harper, MD writes more Part D claims than 11% of them and scores higher on MIPS quality than 13% - 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 quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 28Diana Harper, MD, Part D claim volume, percentile in specialty: 11 · MIPS quality, percentile: 13
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one physical medicine & rehabilitation physician peer from a representative sample of 60; the gold marker is Diana Harper, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Diana Harper, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Diana Harper, MD?

Below national average

NPI registry status

Active

Issued 07/24/2006

NPI 1811919525

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,618 US NPIs in this specialty

Medicare Part D claims

45 94% vs specialty avg

2024 prescription claims

Specialty avg: 793

MIPS final score

64.9/100 18.6 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in North Carolina

How Physical Medicine & Rehabilitation Physician compares to other specialties among North Carolina providers

North Carolina providers
Clinical Social Worker7.1%Behavior Technician6.8%Pharmacist4.9%Student in an Organized Heal…4.7%Physical Therapist4.2%Mental Health Counselor4.2%Physical Medicine & Rehabili…0.2%
Largest specialties in North Carolina (% of in-state providers)

Medicare quality performance, MIPS

Diana Harper, MD's 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average

Below national average
MIPS Final Score
64.9/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%64.9%
MIPS final score (Physical Medicine & Rehabilitation Physician) - 64.9/100 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

3830 BLUE RIDGE RD
Raleigh, NC 27612
(877) 749-7428

Provider Details

NPI 1811919525
Specialty Physical Medicine & Rehabilitation Physician
Credentials MD
Gender Female
NPI Issued 07/24/2006

CMS Quality Score (MIPS)

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

64.8511
Final Score
Measured-score avg: 83.5
20
Quality

Reporting: Group practice

Brand vs generic prescribing mix · Above average

Diana Harper, MD - brand share 27.0%
Physical Medicine & Rehabilitation Physician average

27% brand-name claims vs 73% generic, on 45 2024 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 2024.

45
Total Claims
$1K
Total Drug Cost
25
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
45
Total Day Supply
712
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$600
Generic Drug Cost
$877
Opioid Claims
27 (60.0% rate)

Patient Demographics

Average Patient Age
80.4 years
Avg HCC Risk Score
2.22

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

Drug Claims
Morphine Sulfate
 11

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

More Physical Medicine & Rehabilitation Physician in NC → All providers in North Carolina → Compare specialties →

Physical Medicine & Rehabilitation Physician Overview

How Diana Harper, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,618
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
793
Avg Claims per Provider

Diana Harper, MD's 45 claims are below the specialty average of 793.

Nationwide Physical Medicine & Rehabilitation Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Harper, both outside North Carolina so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (64.9 here).

Laurie Behm 64.7 MO Morgan Drake 64.7 AR Allan Rowley 65 AZ Youssef Josephson 65 NJ

Same NPPES enumeration year (2006)

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

Jeffrey Filiberto Fredericksburg, VA Guorong Dai Brooklyn, NY Melinda-Ann Roth Westminster, MD Airelle Hunter-Giordano Newark, DE

Nearby Physical Medicine & Rehabilitation Physician Providers in North Carolina

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

One of 421 Physical Medicine & Rehabilitation Physician providers enrolled in North Carolina, 5 are shown here.

Dr. Meisha Abbasinejad
MD
Fayetteville, NC
Dr. Stephen Abbott
D.O.
Sanford, NC
Dr. Matthew Adamkin
M.D.
Charlotte, NC
Dr. David Agner
MD
Charlotte, NC
Dr. Usman Ahmad
D.O.
Charlotte, NC

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Diana Harper, MD's specialty? ▼
Diana Harper, MD specializes in Physical Medicine & Rehabilitation Physician and practices in Raleigh, North Carolina. Credentials: MD.
How much does Diana Harper, MD prescribe under Medicare Part D? ▼
In 2024, Diana Harper, MD wrote 45 Medicare Part D claims totaling $1K in drug costs for 25 beneficiaries.
What is Diana Harper, MD's Medicare quality score? ▼
Diana Harper, MD has a CMS MIPS Final Score of 64.9/100 (Quality: 20). 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 Diana Harper, MD located? ▼
Diana Harper, MD is located at 3830 BLUE RIDGE RD, Raleigh, NC, 27612. Phone: (877) 749-7428.
What is Diana Harper, MD's NPI number? ▼
Diana Harper, MD's National Provider Identifier (NPI) is 1811919525, issued on 07/24/2006.
Does Diana Harper, MD prescribe more brand-name or generic drugs? ▼
Diana Harper, MD's prescribing is 27% brand-name and 73% generic drugs by claim count, with $600 in brand drug costs.
Does Diana Harper, MD prescribe opioids? ▼
Yes, Diana Harper, MD had 27 opioid claims in 2024 with an opioid prescribing rate of 60.0%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,618 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 793 Medicare Part D claims per year.
What drugs does Diana Harper, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Diana Harper, MD's most frequently prescribed drugs include Morphine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Diana Harper, MD accept Medicare? ▼
Diana Harper, MD appears in CMS Medicare data with 45 Part D claims and 25 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Diana Harper, MD's credentials? ▼
Diana Harper, MD's NPI is 1811919525 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

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.