NPPES file of Aug 9, 2026

Mary Pearl Greiss-Coult, D.O.

Obstetrics & Gynecology Physician · Allentown, PA

Mary Pearl Greiss-Coult, D.O. is an obstetrics & gynecology physician with a practice address in Allentown, Pennsylvania, and NPI 1811006646, issued on Aug 29, 2006. Check the license (Pennsylvania OS012199, 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
1811006646
Name
Mary Pearl Greiss-Coult
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
OS012199 PA
Self-reported in NPPES; status is on the state search
Practice location
1611 Pond RD, Allentown, PA 18104
Phone
(610) 366-7444
Enumerated
Aug 29, 2006
Record last updated
Sep 12, 2022
Fax
(888) 546-4216
Medicaid ID
1018461090001 PA
Medicare enrollment
Enrolled (PECOS I20070522000429); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2001
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 1611 Pond RD

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

  1. Stephen Alvarado, M.D.Pediatrics Physician1255330999
  2. Lisa Baker-Vaughn, MDObstetrics & Gynecology Physician1073627774
  3. Courtney Boyle, DOObstetrics & Gynecology Physician1578882114
  4. Emily Brophy, MDObstetrics & Gynecology Physician1922475417
  5. Lisa Bunin, MDOphthalmology Physician1154397875
  6. Colleen Cooper, MDPediatric Adolescent Medicine Physician1154316651

Verify Mary Pearl Greiss-Coult 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 OS012199
    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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21% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

131 Medicare Part D claims for 55 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Mary Greiss-Coult131
  2. Specialty average165

Most prescribed

  1. Estradiol40 claims
  2. Valacyclovir12 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: $669.33

29 payments; by number, the most common kind was food and beverage; the largest payer was Mayne Pharma Commercial 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. Mary Greiss-Coult$669.33
  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. Regional Womens Health Group LLCAllentown, PA

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

98 obstetrics & gynecology physician records list a practice address in Allentown

They are 98 of the 5,904 NPPES records with a practice address in Allentown, and 1,974 obstetrics & gynecology physician records in Pennsylvania.

Other obstetrics & gynecology physician records in Pennsylvania

  1. Nagi Abadier, MDReading, PA1144335498
  2. Kristin Abbruzzi, DOBethlehem, PA1396753331
  3. Dina AbdelsamadPittsburgh, PA1265264717
  4. Annabelle Abdo, DOPhiladelphia, PA1518583665
  5. Joseph Abdul-Malak, MD, MBAHermitage, PA1679198188
  6. Michael Abdul-Malak, MDHermitage, PA1053317990
  7. Natasha Abdullah, MDPhiladelphia, PA1427673110
  8. Kathryn Abello, M.D.Lancaster, PA1760446694
  9. Alice Abernathy, MDPhiladelphia, PA1740711498
  10. Shenali Abeysekera, M.D.Easton, PA1942550363

Common questions

What is Mary Pearl Greiss-Coult, D.O.'s NPI number?

Mary Pearl Greiss-Coult, D.O.'s National Provider Identifier (NPI) is 1811006646, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Pearl Greiss-Coult, D.O. located?

The NPPES record lists a practice address at 1611 Pond RD, Allentown, PA, 18104. Phone: (610) 366-7444. Providers update this record themselves, so call before visiting.

How can I verify Mary Pearl Greiss-Coult, D.O.'s license?

NPPES lists Pennsylvania license number OS012199, 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 Mary Pearl Greiss-Coult, D.O. prescribe under Medicare Part D?

In 2024, Mary Pearl Greiss-Coult, D.O. had 131 Medicare Part D claims for 55 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.