2026 NPPES data Trauma Surgery Physician NPI 1184607921 M.D.
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JOHN ANDERSON, M.D.

Trauma Surgery Physician in SACRAMENTO, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
174
Medicare Part D claims · 14 beneficiaries · Trauma Surgery Physician avg: 70
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$13.25
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOHN ANDERSON, M.D. filed 174 Medicare Part D claims in 2023 as a Trauma Surgery Physician in SACRAMENTO, California, prescribing 91% generic.

174
Part D claims, 2023
91%
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.

JOHN ANDERSON, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

174 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 certification likely (heuristic — not verified)

JOHN ANDERSON, M.D. 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 JOHN ANDERSON, M.D.?

Quality data not reported

NPI registry status

Active

Issued 11/25/2005

NPI 1184607921

Primary specialty

Trauma Surgery Physician

Niche

959 US NPIs in this specialty

Medicare Part D claims

174 149% vs specialty avg

2023 prescription claims

Specialty avg: 70

Specialty distribution in California

How Trauma Surgery Physician compares to other specialties among California providers

California providers

Trauma Surgery Physician share within California

1. Trauma Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Trauma Surgery Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Trauma Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Trauma Surgery Physician ABMS/AOA estimate

Est. board-certified rate (Trauma Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Trauma Surgery Physician) — ABMS / AOA estimate

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).

JOHN ANDERSON, M.D. is a Trauma Surgery Physician provider practicing in SACRAMENTO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1184607921. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOHN ANDERSON, M.D. appears in the CMS NPPES registry as a Trauma Surgery Physician provider holding M.D. credentials at 2315 STOCKTON BLVD, SACRAMENTO, CA, 95817, with a listed phone of (916) 734-7210. NPI 1184607921 was issued on 11/25/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDERSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 174 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $8K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 61.5%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Trauma Surgery Physician is a narrow specialty nationwide, with 959 enrolled providers across 49 states and an average of 70 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

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Provider Details

NPI 1184607921
Specialty Trauma Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 11/25/2005

Hospital and facility affiliations

Facilities where JOHN ANDERSON, M.D. 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.

REGENTS OF THE UNIV OF CA
SACRAMENTO, 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 JOHN ANDERSON, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$13

Largest payer

Aroa Biosurgery Incorporated

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 JOHN ANDERSON, M.D.. To verify JOHN ANDERSON, 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.

Brand vs generic prescribing mix · Generic-heavy

JOHN ANDERSON, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 174 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.

174
Total Claims
$8K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
182
Total Day Supply
4,871
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$897
Generic Drug Cost
$7K
Opioid Claims
107 (61.5% rate)

Patient Demographics

Average Patient Age
67.9 years
Avg HCC Risk Score
1.69

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
40
Oxycodone Hcl
33
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
23
Alprazolam
13
Gabapentin
13
Ventolin Hfa
Albuterol Sulfate
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Trauma Surgery Physician Overview

How JOHN ANDERSON, M.D. fits within the Trauma Surgery Physician landscape nationally.

959
Trauma Surgery Physician Providers in US
49
States with Trauma Surgery Physician
70
Avg Claims per Provider

JOHN ANDERSON, M.D.'s 174 claims are above the specialty average of 70.

Nearby Trauma Surgery Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as ANDERSON.

Compare Trauma Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN ANDERSON, M.D.'s specialty?
JOHN ANDERSON, M.D. specializes in Trauma Surgery Physician and practices in SACRAMENTO, California. Credentials: M.D..
How much does JOHN ANDERSON, M.D. prescribe under Medicare Part D?
In 2023, JOHN ANDERSON, M.D. wrote 174 Medicare Part D claims totaling $8K in drug costs for 14 beneficiaries.
Where is JOHN ANDERSON, M.D. located?
JOHN ANDERSON, M.D. is located at 2315 STOCKTON BLVD, SACRAMENTO, CA, 95817. Phone: (916) 734-7210.
What is JOHN ANDERSON, M.D.'s NPI number?
JOHN ANDERSON, M.D.'s National Provider Identifier (NPI) is 1184607921, issued on 11/25/2005.
Does JOHN ANDERSON, M.D. prescribe more brand-name or generic drugs?
JOHN ANDERSON, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $897 in brand drug costs.
Does JOHN ANDERSON, M.D. prescribe opioids?
Yes, JOHN ANDERSON, M.D. had 107 opioid claims in 2023 with an opioid prescribing rate of 61.5%.
How many Trauma Surgery Physician providers are there in the US?
There are 959 Trauma Surgery Physician providers across 49 states in the US. The average Trauma Surgery Physician provider writes 70 Medicare Part D claims per year.
What drugs does JOHN ANDERSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOHN ANDERSON, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone Hcl, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN ANDERSON, M.D. accept Medicare?
JOHN ANDERSON, M.D. appears in CMS Medicare data with 174 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN ANDERSON, M.D.'s credentials?
JOHN ANDERSON, M.D.'s NPI is 1184607921 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

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