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Clinical Social Worker

Alex S. Markels, CSW

Sees patients in San Rafael, CA · California

Summary

Alex S. Markels, CSW (Clinical Social Worker) is enrolled with Medicare at 1 practice location in San Rafael, CA. NPI 1467522367. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Alex S. Markels, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Clinical Social WorkerPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
35Years since medical school (graduated 1991)
MaleGender (as listed)

Quick answers

Where does Alex S. Markels see patients?
Medicare's clinician data lists 1 practice location in San Rafael, CA. Call before your visit to confirm the address.
What is Alex S. Markels's specialty?
Medicare lists Clinical Social Worker as the primary specialty.
Does Alex S. Markels accept Medicare assignment?
Yes. Medicare's clinician data says Alex S. Markels accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Alex S. Markels offer telehealth?
Medicare's clinician data says Alex S. Markels offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Alex S. Markels?
(415) 857-4841, as listed in official Medicare / NPI Registry data.
What is Alex S. Markels's NPI number?
1467522367. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Alex S. Markels is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other clinicians: Clinical Social Worker, California →

Other clinical social workers in San Rafael

Clinicians with the same Medicare primary specialty in San Rafael, CA — not a recommendation.

All clinical social workers in San Rafael →

Clinician information

CredentialCSW
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1467522367
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians