Erika Monique Simpson, M.D.
Obstetrics & Gynecology Physician · Oakland, CA
Erika Monique Simpson, M.D. is an obstetrics & gynecology physician with a practice address in Oakland, California, and NPI 1558659847, issued on Jul 20, 2011. Check the license (California A117379, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erika Monique Simpson
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A117379 CA
Self-reported in NPPES; status is on the state search - Practice location
- 280 W Macarthur Blvd, Oakland, CA 94611
- Phone
- (510) 752-7772
- Enumerated
- Jul 20, 2011
- Record last updated
- Feb 10, 2022
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 280 W Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Karen Ahn, M.S.Genetic Counselor (M.S.)1396723532
- Kimberly Aikawa-Olin, M.S., R.D., C.D.E.Registered Dietitian1326116740
- Leila Al-MarayatiPhysical Therapist1952459109
- Elizabeth Alexandro, OTR, CHTHand Occupational Therapist1972662708
- Teri Alyami, MDInternal Medicine Physician1326126194
Verify Erika Monique Simpson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A117379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
53 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol27 claims
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.
Erika Monique Simpson among 5,088 obstetrics & gynecology physician records in California
Erika Monique Simpson, 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 2011, is newer than 72% of them.
- NPI issued2011 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2022 · 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 Oakland → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Grace Cavallaro, MDOakland, CA 946111548342165
- Victor Chin, MDOakland, CA 946111598843385
- Christie Cooksey, MDOakland, CA 946111689668386
- Patrick Dawkins, MDOakland, CA 946111760571145
- Rima Goldman, MDOakland, CA 946111528146354
- Judith Lamberti, MDOakland, CA 946111043398837
- Susan Liu, MDOakland, CA 946111376629881
- Sonia Ordonez, MDOakland, CA 946111215049986
Common questions
What is Erika Monique Simpson, M.D.'s NPI number?
Erika Monique Simpson, M.D.'s National Provider Identifier (NPI) is 1558659847, issued on Jul 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Erika Monique Simpson, M.D. located?
The NPPES record lists a practice address at 280 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-7772. Providers update this record themselves, so call before visiting.
How can I verify Erika Monique Simpson, M.D.'s license?
NPPES lists California license number A117379, 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 Erika Monique Simpson, M.D. prescribe under Medicare Part D?
In 2024, Erika Monique Simpson, M.D. had 53 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.