Erika Koh, MD
Clinical & Laboratory Dermatological Immunology Physician · Redwood City, CA
Erika Koh, MD is a clinical & laboratory dermatological immunology physician with a practice address in Redwood City, California, and NPI 1164083846, issued on Jun 24, 2019. Check the license (California A208030, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erika Koh
- Credential
- MD
- Primary taxonomy
- Clinical & Laboratory Dermatological Immunology Physician 207NI0002X
- License numbers
- A208030 CA
25MA13217400 NJ
345062 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3060 Broadway, Redwood City, CA 94062
- Phone
- (650) 361-1177
- Enumerated
- Jun 24, 2019
- Record last updated
- Jul 9, 2026
- Entity
- Type 1 · individual
5 nearest clinical & laboratory dermatological immunology physician records → All 6 in California → Look up another NPI →
Also registered at 3060 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Papp, PA-CMedical Physician Assistant1114157211
Verify Erika Koh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A208030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average clinical & laboratory dermatological immunology physician in 2024
222 Medicare Part D claims for 135 beneficiaries, against an average of 823 among the 35 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Fluorouracil39 claims
- Hydrocortisone21 claims
- Triamcinolone Acetonide18 claims
- Tacrolimus17 claims
- Ketoconazole15 claims
- Clobetasol Propionate14 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.
Clinical & Laboratory Dermatological Immunology Physician providers in California
There are 6 clinical & laboratory dermatological immunology physician records in California.
All 6 in California → Every provider in Redwood City → Clinical & Laboratory Dermatological Immunology Physician nationwide →
The 5 clinical & laboratory dermatological immunology physician records with the nearest ZIP codes
- Melinda Longaker, MDMenlo Park, CA 940251902997430
- Orval Eshelman, M.D.Los Gatos, CA 950321366445116
- Benjamin Farahnik, MDLong Beach, CA 908081699209254
- Veena Vanchinathan, M.D.Los Angeles, CA 900951427284066
- Lawrence Matt, M.D.Los Angeles, CA 900491326166521
Common questions
What is Erika Koh, MD's NPI number?
Erika Koh, MD's National Provider Identifier (NPI) is 1164083846, issued on Jun 24, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Erika Koh, MD located?
The NPPES record lists a practice address at 3060 Broadway, Redwood City, CA, 94062. Phone: (650) 361-1177. Providers update this record themselves, so call before visiting.
How can I verify Erika Koh, MD's license?
NPPES lists California license number A208030, 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 Koh, MD prescribe under Medicare Part D?
In 2024, Erika Koh, MD had 222 Medicare Part D claims for 135 beneficiaries; the average among clinical & laboratory dermatological immunology physician prescribers was 823. 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.