NPPES file of Aug 9, 2026

Dorothy C. May, M.D.

Obstetrics & Gynecology Physician · Lancaster, PA

Dorothy C. May, M.D. is an obstetrics & gynecology physician with a practice address in Lancaster, Pennsylvania, and NPI 1669552345, issued on Oct 16, 2006. Check the license (Pennsylvania MD070844L, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1669552345
Name
Dorothy C. May
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
MD070844L PA
Self-reported in NPPES; status is on the state search
Practice location
2128 Embassy Dr, Lancaster, PA 17603
Phone
(717) 509-5090
Enumerated
Oct 16, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(717) 509-5078
Medicare enrollment
Enrolled (PECOS I20050330000331); accepts Medicare assignment
Medical or professional school
Medical College Of Pennsylvania, 1996
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 2128 Embassy Dr

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

  1. Mackenzi Bingaman, DOObstetrics & Gynecology Physician1831713031
  2. John Eichenlaub, M.D.Obstetrics & Gynecology Physician1073514535
  3. Cheryl Gard, CNM, CRNPAdvanced Practice Midwife1851481139
  4. Elizabeth Ruszak, D.O.Obstetrics & Gynecology Physician1194090696

Verify Dorothy C. May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD070844L
    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 Pennsylvania license search

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87% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

309 Medicare Part D claims for 116 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Dorothy May309
  2. Specialty average165

Most prescribed

  1. Estradiol79 claims
  2. Premarin27 claims
  3. Clobetasol Propionate25 claims
  4. Yuvafem25 claims
  5. Vagifem14 claims
  6. Alendronate Sodium13 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.

Bills Medicare through one group practice

  1. Lancaster General Medical GroupLancaster, PA

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

Dorothy C. May among 1,974 obstetrics & gynecology physician records in Pennsylvania

Dorothy C. May, M.D. is one of 1,974 obstetrics & gynecology physician records with a practice address in Pennsylvania. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 56% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1996 · median 2007 among the 1,176 with a school on file
  • Record last updated2007 · 58% 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 Pennsylvania 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 Pennsylvania

There are 1,974 obstetrics & gynecology physician records in Pennsylvania.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Mackenzi Bingaman, DOLancaster, PA 176031831713031
  2. John Eichenlaub, M.D.Lancaster, PA 176031073514535
  3. Jessica McCardell, D.O.Lancaster, PA 176031346390051
  4. Ronald Plutnicki, M.D.Lancaster, PA 176031578830303
  5. Elizabeth Ruszak, D.O.Lancaster, PA 176031194090696
  6. Jamie Bastek Finger, MDLancaster, PA 176021952466062
  7. Syeda Alam, MDLancaster, PA 176011780749804
  8. Sarah Eiser, M.D.Lancaster, PA 176011598925018

Common questions

What is Dorothy C. May, M.D.'s NPI number?

Dorothy C. May, M.D.'s National Provider Identifier (NPI) is 1669552345, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dorothy C. May, M.D. located?

The NPPES record lists a practice address at 2128 Embassy Dr, Lancaster, PA, 17603. Phone: (717) 509-5090. Providers update this record themselves, so call before visiting.

How can I verify Dorothy C. May, M.D.'s license?

NPPES lists Pennsylvania license number MD070844L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dorothy C. May, M.D. prescribe under Medicare Part D?

In 2024, Dorothy C. May, M.D. had 309 Medicare Part D claims for 116 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.