Heather Gerst
Gastroenterology Physician · Williamsport, PA
Heather Gerst is a gastroenterology physician with a practice address in Williamsport, Pennsylvania, and NPI 1114193299, issued on May 7, 2008. Check the license (Pennsylvania OS015748, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Heather Gerst
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- OS015748 PA
Self-reported in NPPES; status is on the state search - Practice location
- 700 High St, Williamsport, PA 17701
- Phone
- (570) 321-3454
- Enumerated
- May 7, 2008
- Record last updated
- May 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111025000124); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,049 in Pennsylvania → Look up another NPI →
Also registered at 700 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Comfort Adewunmi, DOInternal Medicine Physician1871120881
- Faryal AfzalHospitalist Physician1760659783
- Laura Aguirre, CRNPNurse Practitioner1093577942
- Kylie Akers, MS, OTR/LOccupational Therapist1396430492
Verify Heather Gerst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS015748Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average gastroenterology physician in 2024
982 Medicare Part D claims for 311 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Omeprazole225 claims
- Pantoprazole Sodium140 claims
- Gavilyte-G125 claims
- Colestipol Hcl86 claims
- Sucralfate50 claims
- Linzess41 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 2 group practices
- Pinnacle Health Medical ServicesMechanicsburg, PA
- Susquehanna Physician ServicesWilliamsport, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heather Gerst among 1,049 gastroenterology physician records in Pennsylvania
Heather Gerst is one of 1,049 gastroenterology physician records with a practice address in Pennsylvania. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2005 · median 2003 among the 769 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Pennsylvania
There are 1,049 gastroenterology physician records in Pennsylvania.
All 1,049 in Pennsylvania → Every provider in Williamsport → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Saadullah Khan, MDWilliamsport, PA 177011700836517
- Vivek Kumar, MDWilliamsport, PA 177011427190461
- Stacy Prall, D.O.Williamsport, PA 177011437207685
- Steven Wolfson, MDWilliamsport, PA 177011629062658
- John Burns, M.D.Montoursville, PA 177541184621260
- Robert Purcell, M.D.Montoursville, PA 177541992700900
- Tamoor Shahid, MDMontoursville, PA 177541760890909
- Alison Platt, D.O.Lancaster, PA 176031134371131
Common questions
What is Heather Gerst's NPI number?
Heather Gerst's National Provider Identifier (NPI) is 1114193299, issued on May 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Heather Gerst located?
The NPPES record lists a practice address at 700 High St, Williamsport, PA, 17701. Phone: (570) 321-3454. Providers update this record themselves, so call before visiting.
How can I verify Heather Gerst's license?
NPPES lists Pennsylvania license number OS015748, 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 Heather Gerst prescribe under Medicare Part D?
In 2024, Heather Gerst had 982 Medicare Part D claims for 311 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.