NPI registry status
Active
2026 NPPES data Orthopaedic Surgery of the Spine Physician NPI 1932413713 MD
Verify on CMS → Nicholas Pirnia, MD
Orthopaedic Surgery of the Spine Physician in Alameda, 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 1,779 in Orthopaedic Surgery of the Spine 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
24
Medicare Part D claims · 16 beneficiaries · Orthopaedic Surgery of the Spine Physician avg: 362
MIPS score
91/100
▲ 8 pts above national avg 83.5 · Exceptional
Industry payments
$2.7K
9 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Nicholas Pirnia, MD reported a CMS MIPS final score of 91/100 - above the 83.5 national average - and filed 24 Medicare Part D claims in 2023.
- 91/100
- MIPS score · +8 vs avg
- 24
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥61st
- pct among measured MIPS (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.
Nicholas Pirnia, 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.
91 ≥ 61st percentile 61% 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 Nicholas Pirnia, MD sits
This provider among orthopaedic surgery of the spine physician peers
Across the 562 orthopaedic surgery of the spine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Nicholas Pirnia, MD writes more Part D claims than 4% of them and scores higher on MIPS quality than 73% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one orthopaedic surgery of the spine physician peer from a representative sample of 60; the gold marker is Nicholas Pirnia, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Nicholas Pirnia, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Nicholas Pirnia, MD?
High performer (top quartile)Primary specialty
Orthopaedic Surgery of the Spine Physician
Medicare Part D claims
24 93% vs specialty avg
MIPS final score
91/100 7.5 pts vs avg
Specialty distribution in California
How Orthopaedic Surgery of the Spine Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Nicholas Pirnia, MD's 2023 MIPS final score plotted against the Orthopaedic Surgery of the Spine Physician national average
- MIPS Final Score
- 91/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Orthopaedic Surgery of the Spine Physician) - 91/100 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).
Nicholas Pirnia, MD appears in the CMS NPPES registry as an Orthopaedic Surgery of the Spine Physician provider holding MD credentials at 947 MARINA VILLAGE PKWY, Alameda, CA, 94501, with a listed phone of (510) 522-6637. NPI 1932413713 was issued on 08/03/2010.
Medicare Part D records for calendar year 2023 show 24 prescription claims written by this provider, covering 16 Medicare beneficiaries and totaling roughly $964 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 91/100 for the 2023 performance year (Quality 82.1, Cost 64.1), compared with the 83.5 average among clinicians with a measured score.
Orthopaedic Surgery of the Spine Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 51 states and an average of 362 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
Provider Details
| NPI | 1932413713 |
|---|---|
| Specialty | Orthopaedic Surgery of the Spine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/03/2010 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
91.0409
Final Score
Measured-score avg: 83.5
82.1321
Quality
64.1093
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Nicholas Pirnia, 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.
Alameda Health System
San Leandro, 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).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Nicholas Pirnia, MD. Source: openpaymentsdata.cms.gov.
Total received
$2.7K
Largest payer
Alphatec Spine, Inc
Most common payment type
Travel and Lodging
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Nicholas Pirnia, MD. To verify Nicholas Pirnia, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
24
Total Claims
$964
Total Drug Cost
16
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 27
- Total Day Supply
- 692
- Generic Drug Cost
- $339
Patient Demographics
- Average Patient Age
- 65.3 years
- Avg HCC Risk Score
- 0.99
More Orthopaedic Surgery of the Spine Physician in CA →
All providers in California →
Compare specialties →
Orthopaedic Surgery of the Spine Physician Overview
How Nicholas Pirnia, MD fits within the Orthopaedic Surgery of the Spine Physician landscape nationally.
1,779
Orthopaedic Surgery of the Spine Physician Providers in US
51
States with Orthopaedic Surgery of the Spine Physician
362
Avg Claims per Provider
Nicholas Pirnia, MD's 24 claims are below the specialty average of 362.
Nearby Orthopaedic Surgery of the Spine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Pirnia.
Dr. Gaurav Abbi
MD
Burlingame, CA
Dr. Jean-Jacques Abitbol
MD
San Diego, CA
Dr. Robert Ahearn
MD
Huntington Beach, CA
Dr. Todd Alamin
MD
Stanford, CA
Dr. Gary Alegre
MD
Stockton, CA
Compare Orthopaedic Surgery of the Spine 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Orthopaedic Surgery of the Spine 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.
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Frequently Asked Questions
What is Nicholas Pirnia, MD's specialty? ▼
Nicholas Pirnia, MD specializes in Orthopaedic Surgery of the Spine Physician and practices in Alameda, California. Credentials: MD.
How much does Nicholas Pirnia, MD prescribe under Medicare Part D? ▼
In 2023, Nicholas Pirnia, MD wrote 24 Medicare Part D claims totaling $964 in drug costs for 16 beneficiaries.
What is Nicholas Pirnia, MD's Medicare quality score? ▼
Nicholas Pirnia, MD has a CMS MIPS Final Score of 91/100 (Quality: 82.1, Cost: 64.1). 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 Nicholas Pirnia, MD located? ▼
Nicholas Pirnia, MD is located at 947 MARINA VILLAGE PKWY, Alameda, CA, 94501. Phone: (510) 522-6637.
What is Nicholas Pirnia, MD's NPI number? ▼
Nicholas Pirnia, MD's National Provider Identifier (NPI) is 1932413713, issued on 08/03/2010.
How many Orthopaedic Surgery of the Spine Physician providers are there in the US? ▼
There are 1,779 Orthopaedic Surgery of the Spine Physician providers across 51 states in the US. The average Orthopaedic Surgery of the Spine Physician provider writes 362 Medicare Part D claims per year.
Does Nicholas Pirnia, MD accept Medicare? ▼
Nicholas Pirnia, MD appears in CMS Medicare data with 24 Part D claims and 16 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nicholas Pirnia, MD's credentials? ▼
Nicholas Pirnia, MD's NPI is 1932413713 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 (2023). 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 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
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 May 2026.