Erica Elaine Johnstone, M.D.
Obstetrics & Gynecology Physician · San Francisco, CA
Erica Elaine Johnstone, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1487773263, issued on Mar 29, 2007. Check the license (California A99456, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erica Elaine Johnstone
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A99456 CA
Self-reported in NPPES; status is on the state search - Practice location
- Rei, 2356 Sutter St, 7TH Floor, San Francisco, CA 94143
- Phone
- (415) 353-7475
- Enumerated
- Mar 29, 2007
- Record last updated
- Oct 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100910000457); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Verify Erica Elaine Johnstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99456Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 92.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Utah Adult ServicesSalt Lake City, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erica Elaine Johnstone among 5,088 obstetrics & gynecology physician records in California
Erica Elaine Johnstone, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2003 · median 2004 among the 2,700 with a school on file
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in San Francisco → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Sonia Badheka, D.O.San Francisco, CA 941431013207547
- Elizabeth Blumenthal, MDSan Francisco, CA 941431164759916
- Jocelyn ChapmanSan Francisco, CA 941431770810590
- Alissa Erogbogbo, MDSan Francisco, CA 941431629234554
- Karen McCune, MDSan Francisco, CA 941431326197633
- Jennifer McNallySan Francisco, CA 941431699054718
- Amy Murtha, M.D.San Francisco, CA 941431013066034
- Patricia Robertson, M.D.San Francisco, CA 941431053352302
Common questions
What is Erica Elaine Johnstone, M.D.'s NPI number?
Erica Elaine Johnstone, M.D.'s National Provider Identifier (NPI) is 1487773263, issued on Mar 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Erica Elaine Johnstone, M.D. located?
The NPPES record lists a practice address at Rei, 2356 Sutter St, 7TH Floor, San Francisco, CA, 94143. Phone: (415) 353-7475. Providers update this record themselves, so call before visiting.
How can I verify Erica Elaine Johnstone, M.D.'s license?
NPPES lists California license number A99456, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Erica Elaine Johnstone, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.