2026 NPPES data Epilepsy Physician NPI 1861026700 MD
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JERRY CHEN, MD

Epilepsy Physician in STANFORD, 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
89
Medicare Part D claims · 18 beneficiaries · Epilepsy Physician avg: 878
What the federal data reveals: JERRY CHEN, MD is a Epilepsy Physician ([object Object]) practicing in STANFORD, California with a Medicare Part D prescribing footprint of 89 claims across 18 beneficiaries .

What stands out: JERRY CHEN, MD filed 89 Medicare Part D claims in 2023 across STANFORD, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

JERRY CHEN, MD 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).

JERRY CHEN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/01/2020

NPI 1861026700

Primary specialty

Epilepsy Physician

Rare

354 US NPIs in this specialty

Medicare Part D claims

89 90% vs specialty avg

2023 prescription claims

Specialty avg: 878

Specialty distribution in California

How Epilepsy Physician compares to other specialties among California providers

California providers

Epilepsy Physician share within California

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

Specialty board-certification context

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

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

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

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

JERRY CHEN, MD is a Epilepsy Physician provider practicing in STANFORD, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1861026700. 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.

JERRY CHEN, MD appears in the CMS NPPES registry as a Epilepsy Physician provider holding MD credentials at 300 PASTEUR DR, STANFORD, CA, 94305, with a listed phone of (650) 723-4000. NPI 1861026700 was issued on 03/01/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHEN 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 89 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $6K 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.

Epilepsy Physician is a narrow specialty nationwide, with 354 enrolled providers across 42 states and an average of 878 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

300 PASTEUR DR
STANFORD, CA 94305

Provider Details

NPI 1861026700
Specialty Epilepsy Physician
Credentials MD
Gender Male
NPI Issued 03/01/2020

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 JERRY CHEN, MD. To verify JERRY CHEN, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

89
Total Claims
$6K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
136
Total Day Supply
3,723
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
2.31

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisone
14

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

Epilepsy Physician Overview

How JERRY CHEN, MD fits within the Epilepsy Physician landscape nationally.

354
Epilepsy Physician Providers in US
42
States with Epilepsy Physician
878
Avg Claims per Provider

JERRY CHEN, MD's 89 claims are below the specialty average of 878.

Nearby Epilepsy Physician Providers in California

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

Compare Epilepsy Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JERRY CHEN, MD's specialty?
JERRY CHEN, MD specializes in Epilepsy Physician and practices in STANFORD, California. Credentials: MD.
How much does JERRY CHEN, MD prescribe under Medicare Part D?
In 2023, JERRY CHEN, MD wrote 89 Medicare Part D claims totaling $6K in drug costs for 18 beneficiaries.
Where is JERRY CHEN, MD located?
JERRY CHEN, MD is located at 300 PASTEUR DR, STANFORD, CA, 94305. Phone: (650) 723-4000.
What is JERRY CHEN, MD's NPI number?
JERRY CHEN, MD's National Provider Identifier (NPI) is 1861026700, issued on 03/01/2020.
How many Epilepsy Physician providers are there in the US?
There are 354 Epilepsy Physician providers across 42 states in the US. The average Epilepsy Physician provider writes 878 Medicare Part D claims per year.
What drugs does JERRY CHEN, MD prescribe most often?
Based on 2023 Medicare Part D data, JERRY CHEN, MD's most frequently prescribed drugs include Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JERRY CHEN, MD accept Medicare?
JERRY CHEN, MD appears in CMS Medicare data with 89 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JERRY CHEN, MD's credentials?
JERRY CHEN, MD's NPI is 1861026700 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

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