NPPES file of Aug 9, 2026

Karen Swarer, MD

Obstetrics & Gynecology Physician · Baltimore, MD

Karen Swarer, MD is an obstetrics & gynecology physician with a practice address in Baltimore, Maryland, and NPI 1003202417, issued on Apr 13, 2015. Check the license (Maryland D0099396, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003202417
Name
Karen Swarer
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
D0099396 MD
A163979 CA
Self-reported in NPPES; status is on the state search
Practice location
9103 Franklin Square Dr Ste 305, Baltimore, MD 21237
Phone
(443) 777-7608
Enumerated
Apr 13, 2015
Record last updated
Jun 28, 2024
Medicare enrollment
Enrolled (PECOS I20240216000910); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9103 Franklin Square Dr Ste 305

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tanya Anderson, AGPCNPAdult Health Nurse Practitioner1780865345
  2. Neha GaddamUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1497252480
  3. Emily Maurer, WHNPObstetrics & Gynecology Nurse Practitioner1265860514
  4. David Schlee, MDObstetrics & Gynecology Physician1114555232

Verify Karen Swarer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0099396
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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48% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

85 Medicare Part D claims for 48 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Karen Swarer85
  2. Specialty average165

Most prescribed

  1. Estradiol29 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.

Industry payments in 2024: $135.29

6 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Swarer$135.29
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Medstar Medical Group II LLCBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Obstetrics & Gynecology Physician providers in Maryland

There are 1,034 obstetrics & gynecology physician records in Maryland.

Other obstetrics & gynecology physician records in Maryland

  1. Fouad AbbasBaltimore, MD1023087699
  2. Alexandra Abbate, MDBaltimore, MD1194287003
  3. Basma Abdo, M.DBaltimore, MD1922302652
  4. Tolani Abdulkadir, MDBaltimore, MD1699734293
  5. Sozdar Abed, MDEaston, MD1356572390
  6. Sandra Abraham-Hebert, M.D.Silver Spring, MD1487603080
  7. Francoise Abrams, MDClarksville, MD1477527448
  8. Silvia Abularach, M.D.Waldorf, MD1427341593
  9. Debra Acerenza, D.O.Frederick, MD1932181781
  10. Christopher Ackerman, DO, MBSCumberland, MD1356875843

Common questions

What is Karen Swarer, MD's NPI number?

Karen Swarer, MD's National Provider Identifier (NPI) is 1003202417, issued on Apr 13, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Karen Swarer, MD located?

The NPPES record lists a practice address at 9103 Franklin Square Dr Ste 305, Baltimore, MD, 21237. Phone: (443) 777-7608. Providers update this record themselves, so call before visiting.

How can I verify Karen Swarer, MD's license?

NPPES lists Maryland license number D0099396, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Karen Swarer, MD prescribe under Medicare Part D?

In 2024, Karen Swarer, MD had 85 Medicare Part D claims for 48 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.