NPI registry status
Active
2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1053774273 M.D
Verify on CMS → Rachel Caspar, M.D
Addiction Medicine (Family Medicine) 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 763 in Addiction Medicine (Family Medicine) 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
288
Medicare Part D claims · 40 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
Industry payments
$99.88
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Rachel Caspar, M.D filed 288 Medicare Part D claims in 2023 as a Addiction Medicine (Family Medicine) Physician in Sacramento, California.
- 288
- Part D claims, 2023
- $99.88
- industry payments (Sunshine Act)
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.
Rachel Caspar, M.D's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
288 49th percentile higher than 49% of 1,370,886 prescribers
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-eligible specialty (heuristic, not verified)
Rachel Caspar, M.D practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Rachel Caspar, M.D?
Quality data not reportedPrimary specialty
Addiction Medicine (Family Medicine) Physician
Medicare Part D claims
288 75% vs specialty avg
Specialty distribution in California
How Addiction Medicine (Family Medicine) 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 Addiction Medicine (Family Medicine) 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).
Rachel Caspar, M.D appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding M.D credentials at 1500 21ST ST, Sacramento, CA, 95811, with a listed phone of (916) 443-3299. NPI 1053774273 was issued on 04/04/2016.
Medicare Part D records for calendar year 2023 show 288 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $62K in drug spend.
Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 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 | 1053774273 |
|---|---|
| Specialty | Addiction Medicine (Family Medicine) Physician |
| Credentials | M.D |
| Gender | Female |
| NPI Issued | 04/04/2016 |
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 Rachel Caspar, M.D. Source: openpaymentsdata.cms.gov.
Total received
$100
Largest payer
Braeburn Inc.
Most common payment type
Food and Beverage
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 Rachel Caspar, M.D. To verify Rachel Caspar, M.D'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.
288
Total Claims
$62K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 312
- Total Day Supply
- 7,228
- Generic Drug Cost
- $21K
Patient Demographics
- Average Patient Age
- 57.3 years
- Avg HCC Risk Score
- 1.82
- Gender Split
- 33% female / 68% male
- Age Distribution
- <65: 23, 65-74: 13, 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 Rachel Caspar, M.D prescribes most
Top Medicare Part D drugs by claim count, 2023
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
79 claims
- Buprenorphine Hcl
Buprenorphine Hcl
48 claims
- Vivitrol 22
Vivitrol
22 claims
- Suboxone 12
Suboxone
12 claims
- Omeprazole 11
Omeprazole
11 claims
| Drug | Claims |
|---|---|
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 79 |
| Buprenorphine Hcl | 48 |
| Vivitrol Naltrexone Microspheres | 22 |
| Suboxone Buprenorphine Hcl/Naloxone Hcl | 12 |
| Omeprazole | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Family Medicine) Physician in CA →
All providers in California →
Compare specialties →
Addiction Medicine (Family Medicine) Physician Overview
How Rachel Caspar, M.D fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.
763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider
Rachel Caspar, M.D's 288 claims are below the specialty average of 1,134.
Nearby Addiction Medicine (Family Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Caspar.
Dr. Matthew Abinante
DO, MPH
Huntington Beach, CA
Dr. Paul Abramson
M.D.
San Francisco, CA
Dr. Kami Adibi
M.D.
Los Angeles, CA
Dr. Belis Aladag
MD, MPH, FASAM
Walnut Creek, CA
Dr. Marianne Aldridge
M.D.
Loma Linda, CA
Compare Addiction Medicine (Family Medicine) 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 Addiction Medicine (Family Medicine) 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore California
Frequently Asked Questions
What is Rachel Caspar, M.D's specialty? ▼
Rachel Caspar, M.D specializes in Addiction Medicine (Family Medicine) Physician and practices in Sacramento, California. Credentials: M.D.
How much does Rachel Caspar, M.D prescribe under Medicare Part D? ▼
In 2023, Rachel Caspar, M.D wrote 288 Medicare Part D claims totaling $62K in drug costs for 40 beneficiaries.
Where is Rachel Caspar, M.D located? ▼
Rachel Caspar, M.D is located at 1500 21ST ST, Sacramento, CA, 95811. Phone: (916) 443-3299.
What is Rachel Caspar, M.D's NPI number? ▼
Rachel Caspar, M.D's National Provider Identifier (NPI) is 1053774273, issued on 04/04/2016.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does Rachel Caspar, M.D prescribe most often? ▼
Based on 2023 Medicare Part D data, Rachel Caspar, M.D's most frequently prescribed drugs include Buprenorphine-Naloxone, Buprenorphine Hcl, Vivitrol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rachel Caspar, M.D accept Medicare? ▼
Rachel Caspar, M.D appears in CMS Medicare data with 288 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rachel Caspar, M.D's credentials? ▼
Rachel Caspar, M.D's NPI is 1053774273 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
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.
- 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.