NPPES file of Aug 9, 2026

Erin Sage Chang, PHARMD

Ambulatory Care Pharmacist · San Francisco, CA

Erin Sage Chang, PHARMD is an ambulatory care pharmacist with a practice address in San Francisco, California, and NPI 1992084545, issued on Aug 15, 2011. Check the license (California 72515, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992084545
Name
Erin Sage Chang
Credential
PHARMD
Primary taxonomy
Ambulatory Care Pharmacist 1835P2201X
License numbers
72515 CA
20306 MD
Self-reported in NPPES; status is on the state search
Practice location
4131 Geary Blvd, San Francisco, CA 94118
Phone
(877) 404-5777
Enumerated
Aug 15, 2011
Record last updated
Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4131 Geary Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michele BittnerOccupational Therapist1962562280
  2. Yuliya BlyakherovaPharmacist1467811711
  3. Kimberly Boigon, PHYSICAL THERAPISTPhysical Therapist1790831980
  4. Karen Chan-Lee, B.S.PHARM.Pharmacist1881770980
  5. Gilbert Cheu, PHARM.D.Pharmacist1508959313
  6. Julia Choi, PHARMDPharmacist1780105882

Verify Erin Sage Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 72515
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Ambulatory Care Pharmacist providers in California

There are 485 ambulatory care pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other ambulatory care pharmacist records in California

  1. Zohra Abdul, PHARMDRancho Cordova, CA1780507251
  2. Clare AdamsMission Viejo, CA1174995740
  3. Kristine AdzhemyanLos Angeles, CA1306579131
  4. Thuy AgbodikeSacramento, CA1467230748
  5. Omar Ahmed, PHARMDSan Rafael, CA1285254037
  6. Soo Ahn, PHARM.D.Simi Valley, CA1992245971
  7. Genevieve Aichelman, PHARM.D.Lemoore, CA1003273012
  8. Margherita Aikman, PHARMDSacramento, CA1881972669
  9. Anna Akayvan, PHARMACISTChula Vista, CA1053814012
  10. Samer Al Haddadin, PHARMD, J.D.Los Angeles, CA1023392107

Common questions

What is Erin Sage Chang, PHARMD's NPI number?

Erin Sage Chang, PHARMD's National Provider Identifier (NPI) is 1992084545, issued on Aug 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Erin Sage Chang, PHARMD located?

The NPPES record lists a practice address at 4131 Geary Blvd, San Francisco, CA, 94118. Phone: (877) 404-5777. Providers update this record themselves, so call before visiting.

How can I verify Erin Sage Chang, PHARMD's license?

NPPES lists California license number 72515, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.