DR. DORIS YIAFANG CHIH M.D., PH.D.
NPI 1477612117
Internal Medicine - Nephrology in Duarte, CA

Q: What is Doris Chih's NPI number?

The NPI number for Doris Chih is 1477612117. It was assigned to this individual provider in the NPPES registry on December 8, 2006.

Q: What is Doris Chih's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Doris Chih was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 08, 2006PECOS EnrolledAccepts Medicare Assignment

1500 DUARTE RD, DUARTE, CA 91010(626) 256-4673(626) 408-3911 Get Directions Write a Review

NPPES record last updated: September 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 10, 2025, Nov 3, 2020 (2 updates tracked since 2020).

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About Dr. Doris Yiafang Chih M.d., Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DORIS YIAFANG CHIH M.D., PH.D. (NPI 1477612117) is an individual nephrology provider in Duarte, California, licensed in California (A91101) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2003).

NPPES Registry Identity

NPI1477612117

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameDR. DORIS YIAFANG CHIHCredential: M.D., PH.D.

Location Address1500 DUARTE RDDuarte, CA 91010-3012

Mailing AddressPo Box 512185Los Angeles, CA 90051-0185

Phone(626) 256-4673

Fax(626) 408-3911

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2003

Enumeration DateDecember 8, 2006

Last NPPES UpdateSeptember 10, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2025

✔ NPI 1477612117 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CA · A91101

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License A91101 (CA)

Also ListedHospitalistTaxonomy 208M00000X · License 67835 (AZ), A91101 (CA)

1500 DUARTE RD, Duarte, CA 91010

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Doris Yiafang Chih M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1254431562

PECOS Enrollment IDI20070714000210

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

43 services43 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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