NPPES file of Aug 9, 2026

Fiona Marie Gaunay, M.D.

Colon & Rectal Surgery Physician · Lancaster, PA

Fiona Marie Gaunay, M.D. is a colon & rectal surgery physician with a practice address in Lancaster, Pennsylvania, and NPI 1083904528, issued on Apr 18, 2011. Check the license (Pennsylvania MD462642, 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
1083904528
Name
Fiona Marie Gaunay
Credential
M.D.
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
MD462642 PA
Self-reported in NPPES; status is on the state search
Practice location
2104 Harrisburg Pike Ste 200, Lancaster, PA 17601
Phone
(717) 544-3626
Enumerated
Apr 18, 2011
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171117001932); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 2011
Telehealth
Offers telehealth (CMS)
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 2104 Harrisburg Pike Ste 200

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

  1. John Affuso, M.D.Vascular Surgery Physician1932367919
  2. Lori Brackbill, PA-CMedical Physician Assistant1881971927
  3. Amber Brown, PA-CPhysician Assistant1588671010
  4. William Hope, M.D.Surgery Physician1144756743
  5. Janelle Kothe, PA-CPhysician Assistant1104598689
  6. Mary Theresa Lewis, M.D.Otolaryngology Physician1023215969

Verify Fiona Marie Gaunay 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 MD462642    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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49% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

97 Medicare Part D claims for 57 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 31 claims were for opioids.

  1. Fiona Gaunay97
  2. Specialty average192

Most prescribed

  1. Oxycodone Hcl30 claims
  2. Neomycin Sulfate27 claims
  3. Erythromycin23 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).

Colon & Rectal Surgery Physician providers in Pennsylvania

There are 122 colon & rectal surgery physician records in Pennsylvania.

All 122 in Pennsylvania → Every provider in Lancaster →

Other colon & rectal surgery physician records in Pennsylvania

  1. Robert Akbari, M.D.Doylestown, PA1053328765
  2. Asna Amin, M.D.State College, PA1649474925
  3. Taro Arai, MDHavertown, PA1518002393
  4. Rajeev Arora, M.D.Bethlehem, PA1255446456
  5. Brian Bansidhar, D.O.Erie, PA1992891220
  6. James BaranMonroeville, PA1033118484
  7. Puja Berry, M.D.York, PA1174899389
  8. Suzan Bilgesu, DODanville, PA1932635026
  9. Joshua Bleier, MDPhiladelphia, PA1124292487
  10. Malak BokhariPittsburgh, PA1992894760

Common questions

What is Fiona Marie Gaunay, M.D.'s NPI number?

Fiona Marie Gaunay, M.D.'s National Provider Identifier (NPI) is 1083904528, issued on Apr 18, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Fiona Marie Gaunay, M.D. located?

The NPPES record lists a practice address at 2104 Harrisburg Pike Ste 200, Lancaster, PA, 17601. Phone: (717) 544-3626. Providers update this record themselves, so call before visiting.

How can I verify Fiona Marie Gaunay, M.D.'s license?

NPPES lists Pennsylvania license number MD462642, 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 Fiona Marie Gaunay, M.D. prescribe under Medicare Part D?

In 2024, Fiona Marie Gaunay, M.D. had 97 Medicare Part D claims for 57 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.