2026 NPPES data General Practice Physician NPI 1780620138 M.D.
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JEAN BARDENHEIER, M.D.

General Practice Physician in GLENDORA, 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
9K
Medicare Part D claims · 437 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.6K
65 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JEAN BARDENHEIER, M.D. is a General Practice Physician ([object Object]) practicing in GLENDORA, California with a Medicare Part D prescribing footprint of 9K claims across 437 beneficiaries — 14% brand-name prescribing . Industry payments of $1.6K across 65 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JEAN BARDENHEIER, M.D. filed 9,305 Medicare Part D claims in 2023 across GLENDORA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JEAN BARDENHEIER, 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).

JEAN BARDENHEIER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/22/2006

NPI 1780620138

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

9,305 224% 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).

JEAN BARDENHEIER, M.D. is a General Practice Physician provider practicing in GLENDORA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1780620138. 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.

JEAN BARDENHEIER, M.D. appears in the CMS NPPES registry as a General Practice Physician provider holding M.D. credentials at 552 W FOOTHILL BLVD # 100, GLENDORA, CA, 91741, with a listed phone of (626) 335-4079. NPI 1780620138 was issued on 06/22/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARDENHEIER 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 9,305 prescription claims written by this provider, covering 437 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 2.9%. 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

552 W FOOTHILL BLVD # 100
GLENDORA, CA 91741

Provider Details

NPI 1780620138
Specialty General Practice Physician
Credentials M.D.
Gender Male
NPI Issued 06/22/2006

Hospital and facility affiliations

Facilities where JEAN BARDENHEIER, 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.

HEALTHCARE PARTNERS AFFILIATES MEDICAL GROUP
GLENDORA, 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 JEAN BARDENHEIER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

Largest payer

AstraZeneca Pharmaceuticals LP

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 JEAN BARDENHEIER, M.D.. To verify JEAN BARDENHEIER, 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 · Typical

JEAN BARDENHEIER, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 9,305 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.

9,305
Total Claims
$1.2M
Total Drug Cost
437
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
20,779
Total Day Supply
608,294
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$937K
Generic Drug Cost
$212K
Opioid Claims
266 (2.9% rate)
Antibiotic Claims
240

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
1.80
Gender Split
53% female / 47% male
Age Distribution
<65: 18, 65-74: 185, 75-84: 175, 85+: 59

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Rosuvastatin Calcium
484
Amlodipine Besylate
408
Atorvastatin Calcium
370
Levothyroxine Sodium
331
Losartan Potassium
308
Pantoprazole Sodium
268
Carvedilol
221
Tamsulosin Hcl
188
Fosinopril Sodium
186
Lisinopril
180

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

General Practice Physician Overview

How JEAN BARDENHEIER, M.D. 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

JEAN BARDENHEIER, M.D.'s 9,305 claims are above 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 BARDENHEIER.

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

Frequently Asked Questions

What is JEAN BARDENHEIER, M.D.'s specialty?
JEAN BARDENHEIER, M.D. specializes in General Practice Physician and practices in GLENDORA, California. Credentials: M.D..
How much does JEAN BARDENHEIER, M.D. prescribe under Medicare Part D?
In 2023, JEAN BARDENHEIER, M.D. wrote 9,305 Medicare Part D claims totaling $1.2M in drug costs for 437 beneficiaries.
Where is JEAN BARDENHEIER, M.D. located?
JEAN BARDENHEIER, M.D. is located at 552 W FOOTHILL BLVD # 100, GLENDORA, CA, 91741. Phone: (626) 335-4079.
What is JEAN BARDENHEIER, M.D.'s NPI number?
JEAN BARDENHEIER, M.D.'s National Provider Identifier (NPI) is 1780620138, issued on 06/22/2006.
Does JEAN BARDENHEIER, M.D. prescribe more brand-name or generic drugs?
JEAN BARDENHEIER, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $937K in brand drug costs.
Does JEAN BARDENHEIER, M.D. prescribe opioids?
Yes, JEAN BARDENHEIER, M.D. had 266 opioid claims in 2023 with an opioid prescribing rate of 2.9%.
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.
What drugs does JEAN BARDENHEIER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JEAN BARDENHEIER, M.D.'s most frequently prescribed drugs include Rosuvastatin Calcium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEAN BARDENHEIER, M.D. accept Medicare?
JEAN BARDENHEIER, M.D. appears in CMS Medicare data with 9,305 Part D claims and 437 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEAN BARDENHEIER, M.D.'s credentials?
JEAN BARDENHEIER, M.D.'s NPI is 1780620138 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