NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1932205721 MD
Verify on CMS → Samuel Carvajal, MD
Surgery Physician in Glendale, 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 36,199 in 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
194
Medicare Part D claims · 93 beneficiaries · Surgery Physician avg: 169
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.1/100
▲ 14 pts above national avg 83.1 · Exceptional
Industry payments
$235.21
7 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Samuel Carvajal, MD reported a CMS MIPS final score of 97.1/100 - above the 83.1 national average - and filed 194 Medicare Part D claims in 2023.
- 97.1/100
- MIPS score · +14 vs avg
- 194
- Part D claims, 2023
- 94%
- 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.
Samuel Carvajal, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 15% higher than 85% 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 Samuel Carvajal, MD sits
This provider among surgery physician peers
Across the 7,525 surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Samuel Carvajal, MD writes more Part D claims than 76% of them and scores higher on MIPS quality than 83% - placing this provider in the high-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 surgery physician peer from a representative sample of 60; the gold marker is Samuel Carvajal, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Samuel Carvajal, MD 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 Samuel Carvajal, MD?
High performer (top quartile)Primary specialty
Surgery Physician
Medicare Part D claims
194 15% vs specialty avg
MIPS final score
97.1/100 14 pts vs avg
Specialty distribution in California
How Surgery Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Samuel Carvajal, MD's 2023 MIPS final score plotted against the Surgery Physician national average
- MIPS Final Score
- 97.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Surgery Physician) - 97.1/100 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).
Samuel Carvajal, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 1560 E CHEVY CHASE DR, Glendale, CA, 91206, with a listed phone of (818) 243-1135. NPI 1932205721 was issued on 09/16/2006.
Medicare Part D records for calendar year 2023 show 194 prescription claims written by this provider, covering 93 Medicare beneficiaries and totaling roughly $26K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 33.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.1/100 for the 2023 performance year (Quality 84.2), compared with the national average of 83.1.
Surgery Physician is a mid-sized specialty nationwide, with 36,199 enrolled providers across 56 states and an average of 169 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 | 1932205721 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/16/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.1217
Final Score
Avg: 83.1
84.2434
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
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 Samuel Carvajal, MD. Source: openpaymentsdata.cms.gov.
Total received
$235
Largest payer
Merck Sharp & Dohme LLC
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 Samuel Carvajal, MD. To verify Samuel Carvajal, 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
Samuel Carvajal, MD - brand share 6.0%
Surgery Physician average
6% brand-name claims vs 94% generic, on 194 2023 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 2023.
194
Total Claims
$26K
Total Drug Cost
93
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 225
- Total Day Supply
- 4,059
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $20K
- Opioid Claims
- 64 (33.0% rate)
- Antibiotic Claims
- 23
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 1.60
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Samuel Carvajal, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
44 claims
- Pantoprazole Sodium
Pantoprazole Sodium
21 claims
- Omeprazole 16
Omeprazole
16 claims
- Tramadol Hcl 16
Tramadol Hcl
16 claims
- Cilostazol 13
Cilostazol
13 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 44 |
| Pantoprazole Sodium | 21 |
| Omeprazole | 16 |
| Tramadol Hcl | 16 |
| Cilostazol | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Samuel Carvajal, MD fits within the Surgery Physician landscape nationally.
36,199
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
Samuel Carvajal, MD's 194 claims are above the specialty average of 169.
Nearby Surgery Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Carvajal.
Dr. Oliver Aalami
M.D.
Stanford, CA
Dr. Shahram Aarabi
MD
Oakland, CA
Dr. Miriam Abaunza
M.D.
Los Angeles, CA
Dr. Benjamin Abbadessa
M.D.
San Diego, CA
Abdul-Rahman Abdel-Reheem
Los Angeles, CA
Compare Surgery 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 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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Frequently Asked Questions
What is Samuel Carvajal, MD's specialty? ▼
Samuel Carvajal, MD specializes in Surgery Physician and practices in Glendale, California. Credentials: MD.
How much does Samuel Carvajal, MD prescribe under Medicare Part D? ▼
In 2023, Samuel Carvajal, MD wrote 194 Medicare Part D claims totaling $26K in drug costs for 93 beneficiaries.
What is Samuel Carvajal, MD's Medicare quality score? ▼
Samuel Carvajal, MD has a CMS MIPS Final Score of 97.1/100 (Quality: 84.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Samuel Carvajal, MD located? ▼
Samuel Carvajal, MD is located at 1560 E CHEVY CHASE DR, Glendale, CA, 91206. Phone: (818) 243-1135.
What is Samuel Carvajal, MD's NPI number? ▼
Samuel Carvajal, MD's National Provider Identifier (NPI) is 1932205721, issued on 09/16/2006.
Does Samuel Carvajal, MD prescribe more brand-name or generic drugs? ▼
Samuel Carvajal, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $6K in brand drug costs.
Does Samuel Carvajal, MD prescribe opioids? ▼
Yes, Samuel Carvajal, MD had 64 opioid claims in 2023 with an opioid prescribing rate of 33.0%.
How many Surgery Physician providers are there in the US? ▼
There are 36,199 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does Samuel Carvajal, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Samuel Carvajal, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Pantoprazole Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Samuel Carvajal, MD accept Medicare? ▼
Samuel Carvajal, MD appears in CMS Medicare data with 194 Part D claims and 93 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Samuel Carvajal, MD's credentials? ▼
Samuel Carvajal, MD's NPI is 1932205721 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
Compiled from official public sources by the PlainDoctor editorial team.
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.