What is Jeffrey Chen's NPI number?

Jeffrey Chen's National Provider Identifier (NPI) is 1366838518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jeffrey Chen's specialty?

Jeffrey Chen is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).

Where is Jeffrey Chen located?

Jeffrey Chen's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.

What is Jeffrey Chen's phone number?

The practice phone number listed in the NPPES registry for Jeffrey Chen is (650) 723-4000.

Does Jeffrey Chen accept Medicare?

Jeffrey Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Jeffrey Chen's NPI active?

Yes — Jeffrey Chen's NPI (1366838518) is active in the NPPES registry as of the last update on 2025-07-24.

IndividualActiveAccepts Medicare

Jeffrey Chen, M.D.

NPI 1366838518 · Anesthesiology Physician · Stanford, CA

Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Jeffrey Chen, M.D. is a Anesthesiology Physician provider in Stanford, CA (NPI 1366838518).

Provider details

NPI number: 1366838518
Entity type: Individual
Primary specialty: Anesthesiology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: MD61690875 (WA)

Specialties & taxonomies

Anesthesiology PhysicianPrimary207L00000XLicense A172817 (CA)
Allopathic & Osteopathic Physicians
Anesthesiology Physician207L00000XLicense MD61690875 (WA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
11 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
3 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
94 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620	21	$42
Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731	20	$85
Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415	17	$66
Anesthesia for Procedure on Nerves, Muscles, Tendons, and Tissue of Forearm, Wrist, and Hand01810	13	$135
Anesthesia for Placement Or Revision of Blood Flow Shunt01844	12	$180
Anesthesia for Other Procedure on Lower Leg, Ankle, and Foot Bones01480	11	$153

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$18 across 1 record (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Practice location

300 Pasteur Dr

Stanford, CA 94305-2200

Phone: (650) 723-4000

Approximate (ZIP-level) locationGet directions

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Mailing address