DR. MATTHEW GENYEH MEI M.D.
NPI 1104069269
Internal Medicine - Hematology in Duarte, CA

Active since April 19, 2009PECOS EnrolledAccepts Medicare Assignment
99.12/100
CMS Quality Rating
1500 DUARTE RD, BUILDING 51, DUARTE, CA 91010(626) 256-4673(626) 930-5461 Get Directions Write a Review

NPPES record last updated: November 17, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 17, 2020, Mar 8, 2018, Nov 7, 2017 and 2 more (5 updates tracked since 2017).

About Dr. Matthew Genyeh Mei M.d. NPPES

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

DR. MATTHEW GENYEH MEI M.D. (NPI 1104069269) is an individual hematology provider in Duarte, California, licensed in California (A107290) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2007).

NPPES Registry Identity

NPI1104069269
Entity TypeIndividualMale
Primary Taxonomy207RH0000X
Provider Legal NameDR. MATTHEW GENYEH MEICredential: M.D.
Location Address1500 DUARTE RD, BUILDING 51Duarte, CA 91010-3012
Mailing AddressPo Box 512185Los Angeles, CA 90051-0185
Fax(626) 930-5461
Sole ProprietorYes
Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 2007
Enumeration DateApril 19, 2009
Last NPPES UpdateNovember 17, 20205 updates tracked since enumeration
NPPES CertifiedNovember 17, 2020
NPI 1104069269 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0000X
License Licensed in CA · A107290
Definition
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
Also ListedInternal MedicineTaxonomy 207R00000X · License A107290 (CA)
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License A107290 (CA)
1500 DUARTE RD, Duarte, CA 91010

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. Matthew Genyeh Mei 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 ID6204968548
PECOS Enrollment IDI20100721000911
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 8

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
255 services89 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
121 services46 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.
95 services62 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
35 services15 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
27 services26 patients
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.
24 services20 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.12/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.23
Promoting Interoperability100
Improvement Activities40

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.

Internal Medicine (Endocrinology, Diabetes & Metabolism)
1500 DUARTE RD
DUARTE, CA 91010
Pharmacist
1500 DUARTE RD
DUARTE, CA 91010
Radiology (Diagnostic Radiology)
1500 DUARTE RD
DUARTE, CA 91010
Radiology (Radiation Oncology)
1500 DUARTE RD
DUARTE, CA 91010
Surgery (Surgical Oncology)
1500 DUARTE RD
DUARTE, CA 91010
Surgery
1500 DUARTE RD
DUARTE, CA 91010
Anesthesiology
1500 DUARTE RD
DUARTE, CA 91010
Pathology (Hematology)
1500 DUARTE RD
DUARTE, CA 91010

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Mei's NPI number?

The NPI number for Matthew Mei is 1104069269. It was assigned to this individual provider in the NPPES registry on April 19, 2009.

Where is Matthew Mei located?

Matthew Mei practices at 1500 Duarte Rd Building 51, Duarte, CA 91010. The listed phone number is (626) 256-4673.

What is Matthew Mei's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Is Matthew Mei enrolled in Medicare?

Yes. Matthew Mei is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Matthew Mei was last updated on November 17, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.