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2026 NPPES data Rheumatology Physician NPI 1487825071 M.D
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Semi Ayub, M.D

Rheumatology Physician in Saint Croix Falls, Wisconsin.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 in Rheumatology 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
2K
Medicare Part D claims · 243 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.5/100
▲ 0 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Semi Ayub, M.D reported a CMS MIPS final score of 83.5/100 - above the 83.5 national average - and filed 1,600 Medicare Part D claims in 2024.

83.5/100
MIPS score · +0 vs avg
2K
Part D claims, 2024
86%
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 Semi Ayub, 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 1487825071), first enumerated 03/21/2008.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 1,600 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 83.5/100 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

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

    Source: CMS Care Compare

  • 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 1487825071 · Rheumatology Physician

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

  • NPI-10 1487825071
  • ENUM-MID 2008
  • TAX-MID 6K Rheumatology Physician
  • MIPS-INLINE 83.5/100
  • RX-MID 1,600
  • BOOK-THIN 118 in Wisconsin
  • PHOTO-FINISH Gary Baker · ±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

Semi Ayub, 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.

84 ≥ 39th percentile 39% 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 Semi Ayub, M.D sits

This provider among rheumatology physician peers

Across the 1,970 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Semi Ayub, M.D writes more Part D claims than 45% of them and scores higher on MIPS quality than 40% - 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 quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 67Semi Ayub, M.D, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40
Part D claim volume vs MIPS quality, by specialty percentile

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

✓
Board certification likely (heuristic, not verified)

Semi Ayub, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Semi Ayub, M.D?

Near national average

NPI registry status

Active

Issued 03/21/2008

NPI 1487825071

Primary specialty

Rheumatology Physician

Mid-sized

6,377 US NPIs in this specialty

Medicare Part D claims

1,600 22% vs specialty avg

2024 prescription claims

Specialty avg: 2,058

MIPS final score

83.5/100 0 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Wisconsin

How Rheumatology Physician compares to other specialties among Wisconsin providers

Wisconsin providers
Physical Therapist5.5%Registered Nurse4.7%Pharmacist4.6%Student in an Organized Heal…3.4%Professional Counselor3.3%Speech-Language Pathologist3.2%Rheumatology Physician0.1%
Largest specialties in Wisconsin (% of in-state providers)

Medicare quality performance, MIPS

Semi Ayub, M.D's 2023 MIPS final score plotted against the Rheumatology Physician national average

Near national average
MIPS Final Score
83.5/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%83.5%
MIPS final score (Rheumatology Physician) - 83.5/100 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

235 E STATE ST
Saint Croix Falls, WI 54024
(715) 483-3221

Provider Details

NPI 1487825071
Specialty Rheumatology Physician
Credentials M.D
Gender Female
NPI Issued 03/21/2008

CMS Quality Score (MIPS)

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

83.5331
Final Score
Measured-score avg: 83.5
81.7967
Quality
63.3136
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Semi Ayub, 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.

Allina Health System
Annandale, MN
St. Croix Regional Medical Center
Lindstrom, MN

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 · Typical

Semi Ayub, M.D - brand share 14.0%
Rheumatology Physician average

14% brand-name claims vs 86% generic, on 1,600 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.

1,600
Total Claims
$884K
Total Drug Cost
243
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,242.367
Total Day Supply
94,675
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$836K
Generic Drug Cost
$48K

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.59
Gender Split
72% female / 28% male
Age Distribution
<65: 39, 65-74: 113, 75-84: 65, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

What Semi Ayub, M.D prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Prednisone
 323
Hydroxychloroquine Sulfate
 261
Methotrexate
Methotrexate Sodium
207
Sulfasalazine
 131
Allopurinol
 119
Celecoxib
 74
Mycophenolate Mofetil
 54
Cyclobenzaprine Hcl
 38
Leflunomide
 36
Humira(Cf) Pen
Adalimumab
32

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

More Rheumatology Physician in WI → All providers in Wisconsin → Compare specialties →

Rheumatology Physician Overview

How Semi Ayub, M.D fits within the Rheumatology Physician landscape nationally.

6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider

Semi Ayub, M.D's 1,600 claims are below the specialty average of 2,058.

Nationwide Rheumatology Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (83.5 here).

Gary Baker 83.5 MN Scott Glickstein 83.5 MN Joseph Green 83.5 MN Umbreen Hasan 83.5 MN

Same NPPES enumeration year (2008)

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

Erica Friedman New York, NY Cecilia Chung Nakandakari Miami, FL Joseph Nahas Omaha, NE Shikha Singla Austin, TX

Nearby Rheumatology Physician Providers in Wisconsin

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

One of 118 Rheumatology Physician providers enrolled in Wisconsin, 5 are shown here.

Dr. Safiyya Abdulkadir
MD
Madison, WI
Dr. Gina Adel
MD
Eau Claire, WI
Dr. Suraiya Afroz
D.O.
Manitowoc, WI
Dr. John Albert
MD
Glendale, WI
Dr. Isabelle Amigues
MD
Green Bay, WI

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

Frequently Asked Questions

What is Semi Ayub, M.D's specialty? ▼
Semi Ayub, M.D specializes in Rheumatology Physician and practices in Saint Croix Falls, Wisconsin. Credentials: M.D.
How much does Semi Ayub, M.D prescribe under Medicare Part D? ▼
In 2024, Semi Ayub, M.D wrote 1,600 Medicare Part D claims totaling $884K in drug costs for 243 beneficiaries.
What is Semi Ayub, M.D's Medicare quality score? ▼
Semi Ayub, M.D has a CMS MIPS Final Score of 83.5/100 (Quality: 81.8, Cost: 63.3). 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 Semi Ayub, M.D located? ▼
Semi Ayub, M.D is located at 235 E STATE ST, Saint Croix Falls, WI, 54024. Phone: (715) 483-3221.
What is Semi Ayub, M.D's NPI number? ▼
Semi Ayub, M.D's National Provider Identifier (NPI) is 1487825071, issued on 03/21/2008.
Does Semi Ayub, M.D prescribe more brand-name or generic drugs? ▼
Semi Ayub, M.D's prescribing is 14% brand-name and 86% generic drugs by claim count, with $836K in brand drug costs.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
What drugs does Semi Ayub, M.D prescribe most often? ▼
Based on 2024 Medicare Part D data, Semi Ayub, M.D's most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Semi Ayub, M.D accept Medicare? ▼
Semi Ayub, M.D appears in CMS Medicare data with 1,600 Part D claims and 243 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Semi Ayub, M.D's credentials? ▼
Semi Ayub, M.D's NPI is 1487825071 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.