NPI registry status
Active
2026 NPPES data Sports Medicine (Orthopaedic Surgery) Physician NPI 1578076675 PHYSICIAN ASSISTANT
Verify on CMS → Caroline Bittner, PHYSICIAN ASSISTANT
Sports Medicine (Orthopaedic Surgery) Physician in San Francisco, 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 2,681 in Sports Medicine (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
160
Medicare Part D claims · 116 beneficiaries · Sports Medicine (Orthopaedic Surgery) Physician avg: 278
MIPS score
94.6/100
▲ 12 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Caroline Bittner, PHYSICIAN ASSISTANT reported a CMS MIPS final score of 94.6/100 - above the 83.1 national average - and filed 160 Medicare Part D claims in 2023.
- 94.6/100
- MIPS score · +12 vs avg
- 160
- Part D claims, 2023
- 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.
Caroline Bittner, PHYSICIAN ASSISTANT's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
95 Top 25% higher than 75% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Caroline Bittner, PHYSICIAN ASSISTANT sits
This provider among sports medicine (orthopaedic surgery) physician peers
Across the 1,085 sports medicine (orthopaedic surgery) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Caroline Bittner, PHYSICIAN ASSISTANT writes more Part D claims than 41% of them and scores higher on MIPS quality than 86% - 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 sports medicine (orthopaedic surgery) physician peer from a representative sample of 60; the gold marker is Caroline Bittner, PHYSICIAN ASSISTANT. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Caroline Bittner, PHYSICIAN ASSISTANT practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Caroline Bittner, PHYSICIAN ASSISTANT?
High performer (top quartile)Primary specialty
Sports Medicine (Orthopaedic Surgery) Physician
Medicare Part D claims
160 42% vs specialty avg
MIPS final score
94.6/100 11.5 pts vs avg
Specialty distribution in California
How Sports Medicine (Orthopaedic Surgery) Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Caroline Bittner, PHYSICIAN ASSISTANT's 2023 MIPS final score plotted against the Sports Medicine (Orthopaedic Surgery) Physician national average
- MIPS Final Score
- 94.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Sports Medicine (Orthopaedic Surgery) Physician) - 94.6/100 vs national avg 83.1
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).
Caroline Bittner, PHYSICIAN ASSISTANT appears in the CMS NPPES registry as a Sports Medicine (Orthopaedic Surgery) Physician provider holding PHYSICIAN ASSISTANT credentials at 2250 HAYES ST STE 208, San Francisco, CA, 94117, with a listed phone of (415) 259-4104. NPI 1578076675 was issued on 11/10/2017.
Medicare Part D records for calendar year 2023 show 160 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 15.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.6/100 for the 2023 performance year (Quality 76.7, Cost 97.1), compared with the national average of 83.1.
Sports Medicine (Orthopaedic Surgery) Physician is a narrow specialty nationwide, with 2,681 enrolled providers across 53 states and an average of 278 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 | 1578076675 |
|---|---|
| Specialty | Sports Medicine (Orthopaedic Surgery) Physician |
| Credentials | PHYSICIAN ASSISTANT |
| Gender | Female |
| NPI Issued | 11/10/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.6267
Final Score
Avg: 83.1
76.6789
Quality
97.1443
Cost
Reporting: Group practice
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 Caroline Bittner, PHYSICIAN ASSISTANT. To verify Caroline Bittner, PHYSICIAN ASSISTANT'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.
160
Total Claims
$4K
Total Drug Cost
116
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 162
- Total Day Supply
- 1,529
- Generic Drug Cost
- $2K
- Opioid Claims
- 25 (15.6% rate)
- Antibiotic Claims
- 60
Patient Demographics
- Average Patient Age
- 68.1 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 32, 65-74: 48, 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 Caroline Bittner, PHYSICIAN ASSISTANT prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
17 claims
- Cephalexin
Cephalexin
16 claims
- Ibuprofen
Ibuprofen
15 claims
| Drug | Claims |
|---|---|
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 17 |
| Cephalexin | 16 |
| Ibuprofen | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sports Medicine (Orthopaedic Surgery) Physician in CA →
All providers in California →
Compare specialties →
Sports Medicine (Orthopaedic Surgery) Physician Overview
How Caroline Bittner, PHYSICIAN ASSISTANT fits within the Sports Medicine (Orthopaedic Surgery) Physician landscape nationally.
2,681
Sports Medicine (Orthopaedic Surgery) Physician Providers in US
53
States with Sports Medicine (Orthopaedic Surgery) Physician
278
Avg Claims per Provider
Caroline Bittner, PHYSICIAN ASSISTANT's 160 claims are below the specialty average of 278.
Nearby Sports Medicine (Orthopaedic Surgery) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Bittner.
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 Sports Medicine (Orthopaedic Surgery) 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Caroline Bittner, PHYSICIAN ASSISTANT's specialty? ▼
Caroline Bittner, PHYSICIAN ASSISTANT specializes in Sports Medicine (Orthopaedic Surgery) Physician and practices in San Francisco, California. Credentials: PHYSICIAN ASSISTANT.
How much does Caroline Bittner, PHYSICIAN ASSISTANT prescribe under Medicare Part D? ▼
In 2023, Caroline Bittner, PHYSICIAN ASSISTANT wrote 160 Medicare Part D claims totaling $4K in drug costs for 116 beneficiaries.
What is Caroline Bittner, PHYSICIAN ASSISTANT's Medicare quality score? ▼
Caroline Bittner, PHYSICIAN ASSISTANT has a CMS MIPS Final Score of 94.6/100 (Quality: 76.7, Cost: 97.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Caroline Bittner, PHYSICIAN ASSISTANT located? ▼
Caroline Bittner, PHYSICIAN ASSISTANT is located at 2250 HAYES ST STE 208, San Francisco, CA, 94117. Phone: (415) 259-4104.
What is Caroline Bittner, PHYSICIAN ASSISTANT's NPI number? ▼
Caroline Bittner, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1578076675, issued on 11/10/2017.
Does Caroline Bittner, PHYSICIAN ASSISTANT prescribe opioids? ▼
Yes, Caroline Bittner, PHYSICIAN ASSISTANT had 25 opioid claims in 2023 with an opioid prescribing rate of 15.6%.
How many Sports Medicine (Orthopaedic Surgery) Physician providers are there in the US? ▼
There are 2,681 Sports Medicine (Orthopaedic Surgery) Physician providers across 53 states in the US. The average Sports Medicine (Orthopaedic Surgery) Physician provider writes 278 Medicare Part D claims per year.
What drugs does Caroline Bittner, PHYSICIAN ASSISTANT prescribe most often? ▼
Based on 2023 Medicare Part D data, Caroline Bittner, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Cephalexin, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Caroline Bittner, PHYSICIAN ASSISTANT accept Medicare? ▼
Caroline Bittner, PHYSICIAN ASSISTANT appears in CMS Medicare data with 160 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Caroline Bittner, PHYSICIAN ASSISTANT's credentials? ▼
Caroline Bittner, PHYSICIAN ASSISTANT's NPI is 1578076675 with credentials PHYSICIAN ASSISTANT. 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
Compiled from official public sources by the PlainDoctor editorial team.