NPI registry status
Active
2026 NPPES data Orthopaedic Surgery Physician NPI 1629156351 MD
Verify on CMS → Stephen Nagy, MD
Orthopaedic Surgery Physician in Sacramento, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 26,109 in Orthopaedic Surgery 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
690
Medicare Part D claims · 257 beneficiaries · Orthopaedic Surgery Physician avg: 344
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Stephen Nagy, MD filed 690 Medicare Part D claims in 2024 as an Orthopaedic Surgery Physician in Sacramento, California, prescribing 94% generic.
- 690
- Part D claims, 2024
- 94%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥68th
- pct by Part D claim volume (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 Stephen Nagy, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1629156351), first enumerated 11/01/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 690 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Stephen Nagy, MD's individual license status. Verify directly with the state medical board.
Source: MBC 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 1629156351 · Orthopaedic Surgery Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1629156351
- ENUM-LEGACY 2006
- TAX-MID 26K Orthopaedic Surgery
- RX-LIGHT 690
- BOOK-LIGHT 2,427 in California
- PHOTO-ENUM Carl Zooberg, M.D. · 2006
Stephen Nagy, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
690 ≥ 68th percentile 68% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Stephen Nagy, MD 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 Stephen Nagy, MD?
Quality data not reportedPrimary specialty
Orthopaedic Surgery Physician
Medicare Part D claims
690 101% vs specialty avg
Specialty distribution in California
How Orthopaedic Surgery Physician compares to other specialties among California 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 Orthopaedic Surgery Physician. Verify directly:
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 | 1629156351 |
|---|---|
| Specialty | Orthopaedic Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/01/2006 |
Hospital and facility affiliations
Facilities where Stephen Nagy, 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.
Permanente Medical Group Inc
Redwood City, CA
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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Stephen Nagy, MD. To verify Stephen Nagy, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Stephen Nagy, MD - brand share 6.0%
Orthopaedic Surgery Physician average
6% brand-name claims vs 94% generic, on 690 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.
690
Total Claims
$38K
Total Drug Cost
257
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 793.767
- Total Day Supply
- 14,244
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $31K
- Generic Drug Cost
- $7K
- Opioid Claims
- 306 (44.3% rate)
- Antibiotic Claims
- 59
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 0.90
- Gender Split
- 72% female / 28% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Stephen Nagy, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Oxycodone Hcl
Oxycodone Hcl
195 claims
- Ibuprofen
Ibuprofen
114 claims
- Tramadol Hcl
Tramadol Hcl
80 claims
- Famotidine 74
Famotidine
74 claims
- Amoxicillin 37
Amoxicillin
37 claims
- Pradaxa 33
Pradaxa
33 claims
- Dexamethasone 27
Dexamethasone
27 claims
- Hydrocodone-Acetam… 25
Hydrocodone-Acetaminophen
25 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 195 |
| Ibuprofen | 114 |
| Tramadol Hcl | 80 |
| Famotidine | 74 |
| Amoxicillin | 37 |
| Pradaxa Dabigatran Etexilate Mesylate | 33 |
| Dexamethasone | 27 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 25 |
| Cephalexin | 21 |
| Gabapentin | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Orthopaedic Surgery Physician Overview
How Stephen Nagy, MD fits within the Orthopaedic Surgery Physician landscape nationally.
26,109
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
344
Avg Claims per Provider
Stephen Nagy, MD's 690 claims are above the specialty average of 344.
Nationwide Orthopaedic Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Nagy, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Orthopaedic Surgery Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nagy.
One of 2,427 Orthopaedic Surgery Physician providers enrolled in California, 5 are shown here.
Dr. Karim Abdollahi
M.D.
Laguna Beach, CA
Dr. Hussein Abdulrassoul
MD
Riverside, CA
Dr. Douglas Abeles
MD
Castro Valley, CA
Dr. Anthony Abene
MD
San Jose, CA
Dr. Nicholas Abidi
MD
Capitola, CA
Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Stephen Nagy, MD's specialty? ▼
Stephen Nagy, MD specializes in Orthopaedic Surgery Physician and practices in Sacramento, California. Credentials: MD.
How much does Stephen Nagy, MD prescribe under Medicare Part D? ▼
In 2024, Stephen Nagy, MD wrote 690 Medicare Part D claims totaling $38K in drug costs for 257 beneficiaries.
Where is Stephen Nagy, MD located? ▼
Stephen Nagy, MD is located at 6600 BRUCEVILLE RD, Sacramento, CA, 95823. Phone: (916) 688-2000.
What is Stephen Nagy, MD's NPI number? ▼
Stephen Nagy, MD's National Provider Identifier (NPI) is 1629156351, issued on 11/01/2006.
Does Stephen Nagy, MD prescribe more brand-name or generic drugs? ▼
Stephen Nagy, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $31K in brand drug costs.
Does Stephen Nagy, MD prescribe opioids? ▼
Yes, Stephen Nagy, MD had 306 opioid claims in 2024 with an opioid prescribing rate of 44.3%.
How many Orthopaedic Surgery Physician providers are there in the US? ▼
There are 26,109 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 344 Medicare Part D claims per year.
What drugs does Stephen Nagy, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Stephen Nagy, MD's most frequently prescribed drugs include Oxycodone Hcl, Ibuprofen, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Nagy, MD accept Medicare? ▼
Stephen Nagy, MD appears in CMS Medicare data with 690 Part D claims and 257 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Nagy, MD's credentials? ▼
Stephen Nagy, MD's NPI is 1629156351 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.
- 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.