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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOEL M. PALEFSKY MD
NPI 1336191345
Internal Medicine - Infectious Disease in San Francisco, CA

Active since May 17, 2006PECOS EnrolledAccepts Medicare Assignment
74.46/100
CMS Quality Rating
1600 DIVISADERO ST, SAN FRANCISCO, CA 94115(415) 353-7100(415) 353-7150 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Joel M. Palefsky Md NPPES

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

DR. JOEL M. PALEFSKY MD (NPI 1336191345) is an individual infectious disease provider in San Francisco, California, licensed in California (G54209) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1980).

NPPES Registry Identity

NPI1336191345
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. JOEL M. PALEFSKYCredential: MD
Location Address1600 DIVISADERO STSan Francisco, CA 94115-3010
Mailing Address1635 Divisadero Street, Suite 625, Box 1821San Francisco, CA 94143-0001 · (415) 476-4029 · Fax (415) 476-4150
Phone(415) 353-7100
Fax(415) 353-7150
Sole ProprietorNo
Medical School CMSOtherGraduated 1980
Enumeration DateMay 17, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1336191345 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · G54209
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License G54209 (CA)
1600 DIVISADERO ST, San Francisco, CA 94115
Open in Google Maps ↗

Other Identifiers 1

Medicaid00G542090CA

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. Joel M. Palefsky Md 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 ID4082798640
PECOS Enrollment IDI20080221000304
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.

Biopsy of anus with magnification and chemical agent enhancement using an endoscope 46607
A biopsy of the anus with magnification and chemical enhancement using an endoscope is a procedure where a small sample of tissue is taken from the anal area for examination. This is done using a special instrument called an endoscope, which allows for a detailed view. A chemical agent is used to highlight any unusual areas.
36 services27 patients
Diagnostic exam of anus with magnification and chemical agent enhancement using an endoscope 46601
This procedure involves using a special instrument, an endoscope, to closely examine the anal area. A chemical agent enhances the visibility of the area. It helps identify any issues or abnormalities in a non-invasive manner.
30 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94115 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.

74.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability76
Improvement Activities40
Cost46.68

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.

DR. PATRICIA J MORAN PSY
Psychologist
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-9745
DR. ERIC KAORU NAKAKURA MD
Surgery
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-9846
DR. HOPE S. RUGO MD
Internal Medicine (Hematology)
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7070
RONALD BALASSANIAN MD
Pathology (Anatomic Pathology & Clinical Pathology)
1600 DIVISADERO ST, UCSF/MT. ZION MEDICAL CENTER, ROOM 200 FNA CLINIC
SAN FRANCISCO, CA 94115
San Francisco County (415) 514-6642
DR. JOHN W PARK MD
Internal Medicine (Medical Oncology)
1600 DIVISADERO ST, 2ND FLOOR, BOX 1710
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7070
MARYLOU LOUISE ERNEST NP
Nurse Practitioner
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7035
DR. RICHARD M. KRIEG MD
Radiology (Therapeutic Radiology)
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7175
DR. I-CHOW JOE HSU M.D.
Radiology (Radiation Oncology)
1600 DIVISADERO ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 353-7175

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 Joel Palefsky's NPI number?

The NPI number for Joel Palefsky is 1336191345. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Joel Palefsky located?

Joel Palefsky practices at 1600 Divisadero St, San Francisco, CA 94115. The listed phone number is (415) 353-7100.

What is Joel Palefsky's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Joel Palefsky enrolled in Medicare?

Yes. Joel Palefsky 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 Joel Palefsky was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days 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.