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

ALEXANDER REUBEN MARKES MD
NPI 1164059523
Orthopaedic Surgery - Sports Medicine in San Francisco, CA

Q: What is Alexander Markes's NPI number?

The NPI number for Alexander Markes is 1164059523. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Q: What is Alexander Markes's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Q: When was this NPI record last updated?

The NPPES record for Alexander Markes was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since March 25, 2020PECOS Enrolled

3838 CALIFORNIA ST RM 715, SAN FRANCISCO, CA 94118(415) 668-8010(415) 752-2560 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 28, 2026, Apr 7, 2025, Mar 25, 2020 (3 updates tracked since 2020).

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About Alexander Reuben Markes Md NPPES

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

ALEXANDER REUBEN MARKES MD (NPI 1164059523) is an individual sports medicine provider in San Francisco, California, licensed in California (A182896) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2020).

NPPES Registry Identity

NPI1164059523

Entity TypeIndividualMale

Primary Taxonomy207XX0005X

Provider Legal NameALEXANDER REUBEN MARKESCredential: MD

Location Address3838 CALIFORNIA ST RM 715San Francisco, CA 94118-1509

Mailing Address3838 California St Rm 715San Francisco, CA 94118-1509 · (415) 668-8010 · Fax (415) 752-2560

Phone(415) 668-8010

Fax(415) 752-2560

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2020

Enumeration DateMarch 25, 2020

Last NPPES UpdateSeptember 28, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 28, 2026

✔ NPI 1164059523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207XX0005X

License✔ Licensed in CA · A182896

Definition

An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

3838 CALIFORNIA ST RM 715, San Francisco, CA 94118

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexander Reuben Markes Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9931514486

PECOS Enrollment IDI20260701000912

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.

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.

JAMES DAMIAN KELLY II MD

Orthopaedic Surgery