Shaghayegh D. Johnson, M.D.
Emergency Medicine Physician · Berkeley, CA
Shaghayegh D. Johnson, M.D. is an emergency medicine physician with a practice address in Berkeley, California, and NPI 1841453735, issued on Jul 9, 2008. Check the license (California A117785, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shaghayegh D. Johnson
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A117785 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2450 Ashby Ave, Berkeley, CA 94705
- Phone
- (925) 962-1800
- Enumerated
- Jul 9, 2008
- Record last updated
- Oct 10, 2024
- Fax
- (925) 962-1801
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2450 Ashby Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Richard Bails, M.D.Cardiovascular Disease Physician1336163450
Verify Shaghayegh D. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A117785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average emergency medicine physician in 2024
63 Medicare Part D claims for 46 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Shaghayegh D. Johnson among 7,751 emergency medicine physician records in California
Shaghayegh D. Johnson, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Berkeley → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Karen Carothers, MDBerkeley, CA 947051619935830
- Jeff Chen, DRBerkeley, CA 947051912973074
- Brian Hinrichsen, PABerkeley, CA 947051376534792
- Michael Jugo, MDBerkeley, CA 947051609972066
- Sarah Kelmenson-Chau, MDBerkeley, CA 947051689796674
- Michael Kessler, MDBerkeley, CA 947051316995830
- Michael Liu, MDBerkeley, CA 947051467571091
- Marjorie Macqueen, PABerkeley, CA 947051215995576
Common questions
What is Shaghayegh D. Johnson, M.D.'s NPI number?
Shaghayegh D. Johnson, M.D.'s National Provider Identifier (NPI) is 1841453735, issued on Jul 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Shaghayegh D. Johnson, M.D. located?
The NPPES record lists a practice address at 2450 Ashby Ave, Berkeley, CA, 94705. Phone: (925) 962-1800. Providers update this record themselves, so call before visiting.
How can I verify Shaghayegh D. Johnson, M.D.'s license?
NPPES lists California license number A117785, 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.
How much does Shaghayegh D. Johnson, M.D. prescribe under Medicare Part D?
In 2024, Shaghayegh D. Johnson, M.D. had 63 Medicare Part D claims for 46 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions 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. 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.