2026 NPPES data Rheumatology Physician NPI 1588634117 M.D.
Verify on CMS →

Thomas Osborn, M.D.

Rheumatology Physician in Rochester, Minnesota. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,181 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
1K
Medicare Part D claims · 242 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Thomas Osborn, M.D. filed 1,141 Medicare Part D claims in 2023 as a Rheumatology Physician in Rochester, Minnesota, prescribing 94% generic.

1K
Part D claims, 2023
94%
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.

Thomas Osborn, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

1,141 Top 23% higher than 77% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Thomas Osborn, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Thomas Osborn, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/25/2006

NPI 1588634117

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

1,141 44% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Minnesota

How Rheumatology Physician compares to other specialties among Minnesota providers

Minnesota providers
Behavior Technician - 11.7%Behavior Technician11.7%Clinical Social Worker - 4.7%Clinical Social Worker4.7%Physical Therapist - 4.1%Physical Therapist4.1%Pharmacist - 3.7%Pharmacist3.7%Student in an Organized Health Care Education/Training Program - 3.4%Student in an Organized Health Care Education/Training Program3.4%Mental Health Counselor - 3.1%Mental Health Counselor3.1%Rheumatology Physician - 0.1%Rheumatology Physician0.1%
Largest specialties in Minnesota (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Rheumatology Physician. Verify directly:

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).

Thomas Osborn, M.D. appears in the CMS NPPES registry as a Rheumatology Physician provider holding M.D. credentials at 200 1ST ST SW, Rochester, MN, 55905, with a listed phone of (507) 284-2511. NPI 1588634117 was issued on 01/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Osborn 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 1,141 prescription claims written by this provider, covering 242 Medicare beneficiaries and totaling roughly $378K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 1.1%. 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.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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

200 1ST ST SW
Rochester, MN 55905

Provider Details

NPI 1588634117
Specialty Rheumatology Physician
Credentials M.D.
Gender Male
NPI Issued 01/25/2006

Hospital and facility affiliations

Facilities where Thomas Osborn, 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.

Mayo Clinic
Rochester, 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 · Generic-heavy

Thomas Osborn, M.D. - brand share 6.0%
Rheumatology Physician average

6% brand-name claims vs 94% generic, on 1,141 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.

1,141
Total Claims
$378K
Total Drug Cost
242
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,235
Total Day Supply
65,983
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$323K
Generic Drug Cost
$55K
Opioid Claims
12 (1.1% rate)

Patient Demographics

Average Patient Age
68.0 years
Avg HCC Risk Score
1.49
Gender Split
72% female / 28% male
Age Distribution
<65: 54, 65-74: 128, 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 Thomas Osborn, M.D. 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
Prednisone
268
Hydroxychloroquine Sulfate
248
Methotrexate
Methotrexate Sodium
89
Leflunomide
76
Pilocarpine Hcl
59
Meloxicam
54
Azathioprine
40
Mycophenolate Mofetil
31
Allopurinol
24
Humira(Cf) Pen
Adalimumab
22

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

Rheumatology Physician Overview

How Thomas Osborn, M.D. fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

Thomas Osborn, M.D.'s 1,141 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Minnesota

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Minnesota medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Rheumatology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Thomas Osborn, M.D.'s specialty?
Thomas Osborn, M.D. specializes in Rheumatology Physician and practices in Rochester, Minnesota. Credentials: M.D..
How much does Thomas Osborn, M.D. prescribe under Medicare Part D?
In 2023, Thomas Osborn, M.D. wrote 1,141 Medicare Part D claims totaling $378K in drug costs for 242 beneficiaries.
Where is Thomas Osborn, M.D. located?
Thomas Osborn, M.D. is located at 200 1ST ST SW, Rochester, MN, 55905. Phone: (507) 284-2511.
What is Thomas Osborn, M.D.'s NPI number?
Thomas Osborn, M.D.'s National Provider Identifier (NPI) is 1588634117, issued on 01/25/2006.
Does Thomas Osborn, M.D. prescribe more brand-name or generic drugs?
Thomas Osborn, M.D.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $323K in brand drug costs.
Does Thomas Osborn, M.D. prescribe opioids?
Yes, Thomas Osborn, M.D. had 12 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Thomas Osborn, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Thomas Osborn, 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 Thomas Osborn, M.D. accept Medicare?
Thomas Osborn, M.D. appears in CMS Medicare data with 1,141 Part D claims and 242 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Osborn, M.D.'s credentials?
Thomas Osborn, M.D.'s NPI is 1588634117 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

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.
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

Compiled from official public sources by the PlainDoctor editorial team.