2026 NPPES data General Practice Physician NPI 1265852826
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MARK AZER

General Practice Physician in LOMA LINDA, 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
23
Medicare Part D claims · 12 beneficiaries · General Practice Physician avg: 3K
Industry payments
$69.49
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARK AZER is a General Practice Physician ([object Object]) practicing in LOMA LINDA, California with a Medicare Part D prescribing footprint of 23 claims across 12 beneficiaries . Industry payments of $69.49 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARK AZER filed 23 Medicare Part D claims in 2023 across LOMA LINDA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARK AZER 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).

MARK AZER at a glance

Quality data not reported

NPI registry status

Active

Issued 04/22/2014

NPI 1265852826

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

23 99% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in California

How General Practice Physician compares to other specialties among California providers

California providers

General Practice Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice 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).

MARK AZER is a General Practice Physician provider practicing in LOMA LINDA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1265852826. 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.

MARK AZER appears in the CMS NPPES registry as a General Practice Physician provider at 11234 ANDERSON ST, LOMA LINDA, CA, 92354, with a listed phone of (909) 558-4000. NPI 1265852826 was issued on 04/22/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AZER 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 23 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $180 in drug spend. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

11234 ANDERSON ST
LOMA LINDA, CA 92354

Provider Details

NPI 1265852826
Specialty General Practice Physician
Gender Male
NPI Issued 04/22/2014

Hospital and facility affiliations

Facilities where MARK AZER 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
RIVERSIDE, 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 MARK AZER. Source: openpaymentsdata.cms.gov.

Total received

$69

Largest payer

Boston Scientific Corporation

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 MARK AZER. To verify MARK AZER'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.

23
Total Claims
$180
Total Drug Cost
12
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
27
Total Day Supply
345
Brand Drug Cost
$0
Generic Drug Cost
$180

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
2.39

General Practice Physician Overview

How MARK AZER fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

MARK AZER's 23 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in California

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK AZER's specialty?
MARK AZER specializes in General Practice Physician and practices in LOMA LINDA, California.
How much does MARK AZER prescribe under Medicare Part D?
In 2023, MARK AZER wrote 23 Medicare Part D claims totaling $180 in drug costs for 12 beneficiaries.
Where is MARK AZER located?
MARK AZER is located at 11234 ANDERSON ST, LOMA LINDA, CA, 92354. Phone: (909) 558-4000.
What is MARK AZER's NPI number?
MARK AZER's National Provider Identifier (NPI) is 1265852826, issued on 04/22/2014.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
Does MARK AZER accept Medicare?
MARK AZER appears in CMS Medicare data with 23 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK AZER's credentials?
MARK AZER's NPI is 1265852826. 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