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PAULA JOY LUM M.D., M.P.H.
NPI 1811004559
Internal Medicine in San Francisco, CA

Active since August 25, 2006PECOS EnrolledAccepts Medicare Assignment
91.85/100
CMS Quality Rating
995 POTRERO AVE, BUILDING 80, WARD 84, SAN FRANCISCO, CA 94110(415) 206-2400(415) 476-6953 Get Directions Write a Review

NPPES record last updated: May 7, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Paula Joy Lum M.d., M.p.h. NPPES

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

PAULA JOY LUM M.D., M.P.H. (NPI 1811004559) is an individual internal medicine provider in San Francisco, California, licensed in California (A53746) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1993).

NPPES Registry Identity

NPI1811004559
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NamePAULA JOY LUMCredential: M.D., M.P.H.
Location Address995 POTRERO AVE, BUILDING 80, WARD 84San Francisco, CA 94110-2859
Mailing Address995 Potrero Ave, Building 80, Ward 84San Francisco, CA 94110-2859 · (415) 206-2400 · Fax (415) 476-6953
Phone(415) 206-2400
Fax(415) 476-6953
Sole ProprietorNo
Medical School CMSOtherGraduated 1993
Enumeration DateAugust 25, 2006
Last NPPES UpdateMay 7, 2025
NPPES CertifiedMay 7, 2025
✔ NPI 1811004559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A53746
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.
Also ListedInternal Medicine · Addiction MedicineTaxonomy 207RA0401X · License A53746 (CA)
995 POTRERO AVE, San Francisco, CA 94110
Open in Google Maps ↗

Other Identifiers 1

Medicaid00A537460CA

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

Paula Joy Lum M.d., M.p.h. 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 ID9032263132
PECOS Enrollment IDI20090824000262
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

2

Medicare enrollment records show Paula Lum reassigns Medicare billing to 2 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
Medical Oncology
995 POTRERO AVE, BLDG.80, RM 229
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1326013442 (California), NPI 1386619344 (California)
  • 637 clinicians in this Medicare group
NPI 1356696215 (415) 476-4082
City & County Of San Francisco
0.1 mi
General Acute Care Hospital
1001 POTRERO AVE, BUILDING 5, WARD 1B
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 1,573 clinicians in this Medicare group
NPI 1083648810 (415) 759-4067

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

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.

91.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.53
Promoting Interoperability100
Improvement Activities40
Cost68.01

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.

LUCIA RAMOS MSW
Counselor (Mental Health)
995 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (628) 206-5252
MISS JENNIFER QUILAQUIL SIRUNO RN
Registered Nurse (Psychiatric/Mental Health, Adult)
995 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-3364
CHRISTINE CHANG PECCI M.D.
Family Medicine
995 POTRERO AVE, WARD 83
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-2972
DR. SHERI DAWN WEISER M.D.
Internal Medicine
995 POTRERO AVE, BUILDING 80, 6TH FLOOD
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-2427
ELIZABETH ANN GATEWOOD FNP
Nurse Practitioner (Family)
995 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-5252
DR. MICHAEL RAYMOND BURGESS M.D., PH.D.
Internal Medicine (Hematology & Oncology)
995 POTRERO AVE, BUILDING 80, WARD 86
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-2407
NATALIE BRADLEY
Marriage & Family Therapist
995 POTRERO AVE, BUILDING 90, 3RD FLOOR
SAN FRANCISCO, CA 94110
San Francisco County (415) 206-8412
CAMEO CHANEL TAYLOR
Community Health Worker
995 POTRERO AVE
SAN FRANCISCO, CA 94110
San Francisco County (268) 206-8412

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 Paula Lum's NPI number?

The NPI number for Paula Lum is 1811004559. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Where is Paula Lum located?

Paula Lum practices at 995 Potrero Ave Building 80, Ward 84, San Francisco, CA 94110. The listed phone number is (415) 206-2400.

What is Paula Lum's specialty?

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

Is Paula Lum enrolled in Medicare?

Yes. Paula Lum 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 Paula Lum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Paula Lum reassigns Medicare benefits to 2 organizations: University Of California Sfgh Medical Group (San Francisco, CA) and City & County Of San Francisco (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 Paula Lum'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 Paula Lum was last updated on May 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.