DR. YUMEI MARY CHANG M.D.
NPI 1134381908
Internal Medicine in New York, NY

Q: What is Yumei Chang's NPI number?

The NPI number for Yumei Chang is 1134381908. It was assigned to this individual provider in the NPPES registry on July 1, 2008. The provider is also known as Dr. Mary Chang M.D..

Q: What is Yumei Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Yumei Chang was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 July 01, 2008PECOS EnrolledAccepts Medicare Assignment

250 W 64TH ST, NEW YORK, NY 10023(212) 769-6300(212) 769-7825 Get Directions Write a Review

NPPES record last updated: January 9, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jan 9, 2026, Nov 1, 2018 (2 updates tracked since 2018).

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About Dr. Yumei Mary Chang M.d. NPPES

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

DR. YUMEI MARY CHANG M.D. (NPI 1134381908) is an individual internal medicine provider in New York, New York, licensed in Pennsylvania (MD463062) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2007).

NPPES Registry Identity

NPI1134381908

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. YUMEI MARY CHANGCredential: M.D.

Location Address250 W 64TH STNew York, NY 10023

Mailing Address250 W 64th StNew York, NY 10023 · (310) 463-5771

Phone(212) 769-6300

Fax(212) 769-7825

Sole ProprietorYes

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2007

Enumeration DateJuly 1, 2008

Last NPPES UpdateJanuary 9, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 9, 2026

✔ NPI 1134381908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in PA · MD463062

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

250 W 64TH ST, New York, NY 10023

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Other Names 1

Other Name (5)Dr. Mary Chang M.d.

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. Yumei Mary Chang M.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 ID6709064157

PECOS Enrollment IDI20110707000202

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 4

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

36 services18 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

22 services19 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

20 services12 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

18 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10023 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

$150.24 typical visit price

range $65.69 – $198.19

Typical copayment $37.56 (range $16.42 – $49.54)

Most-billed visit code 99204

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

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 8

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

DR. RICHARD M. BALURAN PT, DPT

Physical Therapist