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DR. MEI ZHU PENG M.D.
NPI 1124113915
Internal Medicine - Nephrology in San Francisco, CA

Active since October 04, 2006PECOS EnrolledAccepts Medicare Assignment
97.22/100
CMS Quality Rating
1001 POTRERO AVENUE, BLDG. 90, 2ND FL, SAN FRANCISCO, CA 94110(628) 206-4777 Get Directions Write a Review

NPPES record last updated: September 28, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mei Zhu Peng M.d. NPPES

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

DR. MEI ZHU PENG M.D. (NPI 1124113915) is an individual nephrology provider in San Francisco, California, licensed in California (A84677) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Portland, and is a graduate of Tufts University School Of Medicine (2002).

NPPES Registry Identity

NPI1124113915
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameDR. MEI ZHU PENGCredential: M.D.
Location Address1001 POTRERO AVENUE, BLDG. 90, 2ND FLSan Francisco, CA 94110
Mailing Address1001 Potrero Avenue, Bldg. 90, 2nd FlSan Francisco, CA 94110
Phone(628) 206-4777
Sole ProprietorYes
Medical School CMSTufts University School Of MedicineGraduated 2002
Enumeration DateOctober 4, 2006
Last NPPES UpdateSeptember 28, 2021
NPPES CertifiedSeptember 28, 2021
✔ NPI 1124113915 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in CA · A84677✔ Licensed in OR · MD150838
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.
1001 POTRERO AVENUE, San Francisco, CA 94110
Open in Google Maps ↗

Secondary Practice Location 1

Location 15314 NE Irving StPortland, OR 97213-3158 · Phone (503) 284-1937

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mei Zhu Peng 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 ID5597857417
PECOS Enrollment IDI20070823000537
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Mei Zhu Peng reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California Sfgh Medical Group
Same address
Diagnostic Radiology
1001 POTRERO AVENUE BLDG 5, 1ST FL
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1073836060 (California)
  • 336 clinicians in this Medicare group
NPI 1063487122 (628) 206-5871
Pacific Inpatient Medical Group
2.3 mi
Internal Medicine
1101 VAN NESS AVE
San Francisco, CA 94109
  • Reassigned Medicare billing, California enrollment
  • 213 clinicians in this Medicare group
NPI 1447447248 (415) 531-9047
Renal Medical Associates
2.8 mi
Nephrology
2100 WEBSTER ST STE 320
San Francisco, CA 94115
  • Reassigned Medicare billing, California enrollment
  • 8 clinicians in this Medicare group
NPI 1447359310 (415) 923-3456

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

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.

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.
502 services150 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.
122 services120 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.
74 services71 patients
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
35 services35 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
22 services18 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
21 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94110 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

97.22/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality88.33
Promoting Interoperability100
Improvement Activities40
Cost69.53

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier11 claims11 services$783.27 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers12 claims12 services$15.12 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

PWINT PHYU KHINE D.O.
Radiology (Diagnostic Radiology)
1001 POTRERO AVENUE, BLDG. 5, 1ST FLOOR
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8020
JOYCE SESE DORADO PH D
Psychologist (Clinical)
1001 POTRERO AVENUE, RM 7M
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5612
CITY AND COUNY OF SAN FRANCISCO
Nuclear Medicine
1001 POTRERO AVENUE, RM G100
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-8580
URMIMALA SARKAR MD
Internal Medicine
1001 POTRERO AVENUE, RM 5H22
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-8317
RENA MEI MD
Internal Medicine (Gastroenterology)
1001 POTRERO AVENUE, BUILDING 5, 3RD FLOOR, SUITE 3D
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8823
MICHAEL HARRINGTON HUMPHREYS MD
Internal Medicine
1001 POTRERO AVENUE, BLDG 100 RM 350
SAN FRANCISCO, CA 94110
San Francisco County (415) 476-4617
LLOYD JOSEPH KING MD
Psychiatry & Neurology (Psychiatry)
1001 POTRERO AVENUE, RM 7M
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5612
DR. HARINI SARATHY MBBS
Internal Medicine (Nephrology)
1001 POTRERO AVENUE, WARD 17 DIALYSIS CLINIC, BLDG. 100, 3RD FL.
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-8242

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 Mei Zhu Peng's NPI number?

The NPI number for Mei Zhu Peng is 1124113915. It was assigned to this individual provider in the NPPES registry on October 4, 2006.

Where is Mei Zhu Peng located?

Mei Zhu Peng practices at 1001 Potrero Avenue Bldg. 90, 2nd Fl, San Francisco, CA 94110. The listed phone number is (628) 206-4777.

What is Mei Zhu Peng's specialty?

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

Is Mei Zhu Peng enrolled in Medicare?

Yes. Mei Zhu Peng 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.

Which organizations bill Medicare for Mei Zhu Peng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mei Zhu Peng reassigns Medicare benefits to 3 organizations: University Of California Sfgh Medical Group (San Francisco, CA), Pacific Inpatient Medical Group (San Francisco, CA) and Renal Medical Associates (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mei Zhu Peng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mei Zhu Peng was last updated on September 28, 2021. 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.