What is Michelle Chiu's NPI number?

Michelle Chiu's National Provider Identifier (NPI) is 1205396645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Michelle Chiu's specialty?

Michelle Chiu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Michelle Chiu located?

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

What is Michelle Chiu's phone number?

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

Does Michelle Chiu accept Medicare?

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

Is Michelle Chiu's NPI active?

Yes — Michelle Chiu's NPI (1205396645) is active in the NPPES registry as of the last update on 2024-04-18.

IndividualActiveAccepts Medicare

Michelle Chiu, MD

NPI 1205396645 · Internal Medicine Physician · Stanford, CA

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

Michelle Chiu, MD is a Internal Medicine Physician provider in Stanford, CA (NPI 1205396645).

Provider details

NPI number: 1205396645
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: A178415 (CA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense A178415 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(55/100 index)

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

Registry tenure28% of score
7 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
671 Medicare services, 2024 (ranked within specialty)

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 methodology.

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)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	411	$132
Hospital Discharge Day Management, More Than 30 Minutes99239	119	$130
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	96	$192
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	29	$88
Initial Hospital Care With Same-Day Admission and Discharge With High Level of Medical Decision Making, Per Day, If Using Time, at Least 85 Minutes99236	16	$232

Typical Medicare-allowed amounts for these services range $88–$232 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Practice location

300 Pasteur Dr

Stanford, CA 94305-2200

Phone: (650) 723-4000

Approximate (ZIP-level) locationGet directions

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Mailing address