Erin K. Johnson, MD
Obstetrics & Gynecology Physician · Saint Louis, MO
Erin K. Johnson, MD is an obstetrics & gynecology physician with a practice address in Saint Louis, Missouri, and NPI 1669997847, issued on Aug 8, 2017. Check the license (Missouri 2022022404, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Erin K. Johnson
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 2022022404 MO
70086114 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4901 Forest Park Ave Ste 710, Saint Louis, MO 63108
- Phone
- (206) 834-4100
- Enumerated
- Aug 8, 2017
- Record last updated
- Mar 11, 2026
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 902 in Missouri → Look up another NPI →
Also registered at 4901 Forest Park Ave Ste 710
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison Cahill, MDMaternal & Fetal Medicine Physician1679788038
- George Macones, MDMaternal & Fetal Medicine Physician1386647345
- Colleen McNicholas, DOGynecology Physician1962664730
- Diane Merritt, MDGynecology Physician1437172459
- Donald Nelson, MDMaternal & Fetal Medicine Physician1962420463
- Andrea O'RiordanObstetrics & Gynecology Physician1861325425
Verify Erin K. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2022022404Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
129 Medicare Part D claims for 60 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 38 claims were for opioids.
Most prescribed
- Oxycodone Hcl37 claims
- Ibuprofen25 claims
- Medroxyprogesterone Acetate12 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.
Erin K. Johnson among 902 obstetrics & gynecology physician records in Missouri
Erin K. Johnson, MD is one of 902 obstetrics & gynecology physician records with a practice address in Missouri. 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 2017, is newer than 75% of them.
- NPI issued2017 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 55% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
332 obstetrics & gynecology physician records list a practice address in Saint Louis
They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 902 obstetrics & gynecology physician records in Missouri.
All 902 in Missouri → Every provider in Saint Louis → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Elise Bardawil, MDSaint Louis, MO 631081578805826
- Robert Crist, M.D.Saint Louis, MO 631081063656916
- Katherine De Souza, MDSaint Louis, MO 631081659614394
- Shelby Dickison, MDSaint Louis, MO 631081598050643
- Maggie Dwiggins, MDSaint Louis, MO 631081306287388
- Holly Hoefgen, MDSaint Louis, MO 631081649432162
- Megan Lawlor, MDSaint Louis, MO 631081295140960
- Jennifer Reeves, MDSaint Louis, MO 631081306289640
Common questions
What is Erin K. Johnson, MD's NPI number?
Erin K. Johnson, MD's National Provider Identifier (NPI) is 1669997847, issued on Aug 8, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Erin K. Johnson, MD located?
The NPPES record lists a practice address at 4901 Forest Park Ave Ste 710, Saint Louis, MO, 63108. Phone: (206) 834-4100. Providers update this record themselves, so call before visiting.
How can I verify Erin K. Johnson, MD's license?
NPPES lists Missouri license number 2022022404, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Erin K. Johnson, MD prescribe under Medicare Part D?
In 2024, Erin K. Johnson, MD had 129 Medicare Part D claims for 60 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.