NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1255369203 MD
Verify on CMS → Eric Greidinger, MD
Rheumatology Physician in Columbus, Ohio.
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
828
Medicare Part D claims · 126 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.3/100
▼ 2 pts below national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Eric Greidinger, MD reported a CMS MIPS final score of 81.3/100 - below the 83.5 national average - and filed 828 Medicare Part D claims in 2024.
- 81.3/100
- MIPS score · -2 vs avg
- 828
- Part D claims, 2024
- 72%
- 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 Eric Greidinger, 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 1255369203), first enumerated 06/29/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 828 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 81.3/100 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.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Ohio statewide board action statistics are published annually — these figures describe aggregate state activity, not Eric Greidinger, MD's individual license status. Verify directly with the state medical board.
Source: OMB annual report 2023
- 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 1255369203 · Rheumatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1255369203
- ENUM-LEGACY 2006
- TAX-MID 6K Rheumatology Physician
- MIPS-INLINE 81.3/100
- RX-LIGHT 828
- BOOK-THIN 245 in Ohio
- PHOTO-FINISH Cecilia Chung Nakand… · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Greidinger · thi…
Greidinger · this provider
81.3 MIPS pts
- Elana Oberstein …
Elana Oberstein
81.3 MIPS pts
- Cecilia Chung Na…
Cecilia Chung Nakandakari
81.3 MIPS pts
- Schartess Culpep…
Schartess Culpepper Pace
81.3 MIPS pts
- Carlos Lozada · …
Carlos Lozada
81.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Eric Greidinger, 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.
81 ≥ 32nd percentile 32% of 454,083 measured providers are in lower value bands
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 Eric Greidinger, MD 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, Eric Greidinger, MD writes more Part D claims than 22% of them and scores higher on MIPS quality than 33% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Eric Greidinger, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Eric Greidinger, MD 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 Eric Greidinger, MD?
Near national averagePrimary specialty
Rheumatology Physician
Medicare Part D claims
828 60% vs specialty avg
MIPS final score
81.3/100 2.2 pts vs avg
Specialty distribution in Ohio
How Rheumatology Physician compares to other specialties among Ohio providers
Medicare quality performance, MIPS
Eric Greidinger, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 81.3/100
- vs 83.5 national avg · 2023 performance year
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
Provider Details
| NPI | 1255369203 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/29/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
81.3101
Final Score
Measured-score avg: 83.5
78.455
Quality
50.5984
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Eric Greidinger, 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.
Osu Internal Medicine LLC
Columbus, OH
University OF Miami
Miami, FL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Ohio OMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Eric Greidinger, MD. To verify Eric Greidinger, MD's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases
OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Eric Greidinger, MD - brand share 28.0%
Rheumatology Physician average
28% brand-name claims vs 72% generic, on 828 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.
828
Total Claims
$1.3M
Total Drug Cost
126
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,637.267
- Total Day Supply
- 48,319
- Brand vs Generic
- 28% brand / 72% generic
- Brand Drug Cost
- $1.3M
- Generic Drug Cost
- $26K
Patient Demographics
- Average Patient Age
- 67.0 years
- Avg HCC Risk Score
- 1.91
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 39, 65-74: 53, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Eric Greidinger, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
126 claims
- Prednisone
Prednisone
99 claims
- Methotrexate
Methotrexate
79 claims
- Humira(Cf) Pen 43
Humira(Cf) Pen
43 claims
- Colchicine 30
Colchicine
30 claims
- Omega-3 Acid Ethyl… 28
Omega-3 Acid Ethyl Esters
28 claims
- Cosentyx Sensoread… 24
Cosentyx Sensoready (2 Pens)
24 claims
- Sulfasalazine 22
Sulfasalazine
22 claims
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 126 |
| Prednisone | 99 |
| Methotrexate Methotrexate Sodium | 79 |
| Humira(Cf) Pen Adalimumab | 43 |
| Colchicine | 30 |
| Omega-3 Acid Ethyl Esters | 28 |
| Cosentyx Sensoready (2 Pens) Secukinumab | 24 |
| Sulfasalazine | 22 |
| Azathioprine | 21 |
| Otezla Apremilast | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Eric Greidinger, MD 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
Eric Greidinger, MD's 828 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 Greidinger, both outside Ohio so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (81.3 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Greidinger.
One of 245 Rheumatology Physician providers enrolled in Ohio, 5 are shown here.
Dr. Abby Abelson
M.D.
Cleveland, OH
Dr. Aya Abugharbyeh
MD
Toledo, OH
Dr. Mohammed Abusamieh
M.D
Toledo, OH
Dr. Tara Adhikari
MD
Blue Ash, OH
Dr. Mohammed Ahmed
M.D.
Toledo, OH
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Eric Greidinger, MD's specialty? ▼
Eric Greidinger, MD specializes in Rheumatology Physician and practices in Columbus, Ohio. Credentials: MD.
How much does Eric Greidinger, MD prescribe under Medicare Part D? ▼
In 2024, Eric Greidinger, MD wrote 828 Medicare Part D claims totaling $1.3M in drug costs for 126 beneficiaries.
What is Eric Greidinger, MD's Medicare quality score? ▼
Eric Greidinger, MD has a CMS MIPS Final Score of 81.3/100 (Quality: 78.5, Cost: 50.6). 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 Eric Greidinger, MD located? ▼
Eric Greidinger, MD is located at 543 TAYLOR AVE STE 3084, Columbus, OH, 43203. Phone: (614) 293-4837.
What is Eric Greidinger, MD's NPI number? ▼
Eric Greidinger, MD's National Provider Identifier (NPI) is 1255369203, issued on 06/29/2006.
Does Eric Greidinger, MD prescribe more brand-name or generic drugs? ▼
Eric Greidinger, MD's prescribing is 28% brand-name and 72% generic drugs by claim count, with $1.3M 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 Eric Greidinger, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Eric Greidinger, MD's most frequently prescribed drugs include Hydroxychloroquine Sulfate, Prednisone, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Eric Greidinger, MD accept Medicare? ▼
Eric Greidinger, MD appears in CMS Medicare data with 828 Part D claims and 126 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Eric Greidinger, MD's credentials? ▼
Eric Greidinger, MD's NPI is 1255369203 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
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.