Marielle Sophia Gross, M.D.
Obstetrics & Gynecology Physician · Chambersburg, PA
Marielle Sophia Gross, M.D. is an obstetrics & gynecology physician with a practice address in Chambersburg, Pennsylvania, and NPI 1023420486, issued on May 20, 2014. Check the license (Pennsylvania MD470686, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Marielle Sophia Gross
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- MD470686 PA
FG7823378 PA
4404 MD
Self-reported in NPPES; status is on the state search - Practice location
- 12 St Paul Dr, Chambersburg, PA 17201
- Phone
- (717) 217-6882
- Enumerated
- May 20, 2014
- Record last updated
- Mar 18, 2026
- Fax
- (717) 255-0157
- Medicare enrollment
- Enrolled (PECOS I20200722003281); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,974 in Pennsylvania → Look up another NPI →
Also registered at 12 St Paul Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Madhav Acharya, MDEndocrinology, Diabetes & Metabolism Physician1760011464
- Branson Allen, MDObstetrics & Gynecology Physician1306308150
- Brittany Baird, RDRegistered Dietitian1285142356
- Neesaytee Boulden, M.D.Obstetrics & Gynecology Physician1972952919
- Berenice Curi Pesantes, MDObstetrics & Gynecology Physician1457846396
- Brian Dunlap, CRNACertified Registered Nurse Anesthetist1194954933
Verify Marielle Sophia Gross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD470686Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Wellspan Medical GroupChambersburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marielle Sophia Gross among 1,974 obstetrics & gynecology physician records in Pennsylvania
Marielle Sophia Gross, 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 2014, is newer than 69% of them.
- NPI issued2014 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2014 · median 2007 among the 1,176 with a school on file
- Record last updated2026 · 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.
All 1,974 in Pennsylvania → Every provider in Chambersburg → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Branson Allen, MDChambersburg, PA 172011306308150
- Carolyn Benenati, M.D.Chambersburg, PA 172011699772491
- Neesaytee Boulden, M.D.Chambersburg, PA 172011972952919
- Yvette Brown, M.D.Chambersburg, PA 172011144227943
- Berenice Curi Pesantes, MDChambersburg, PA 172011457846396
- Constance Glass, MDChambersburg, PA 172011154356319
- Christine Molloy, MDChambersburg, PA 172011356376511
- Thomas Orndorf, M.D.Chambersburg, PA 172011881691012
Common questions
What is Marielle Sophia Gross, M.D.'s NPI number?
Marielle Sophia Gross, M.D.'s National Provider Identifier (NPI) is 1023420486, issued on May 20, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marielle Sophia Gross, M.D. located?
The NPPES record lists a practice address at 12 St Paul Dr, Chambersburg, PA, 17201. Phone: (717) 217-6882. Providers update this record themselves, so call before visiting.
How can I verify Marielle Sophia Gross, M.D.'s license?
NPPES lists Pennsylvania license number MD470686, 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.
What is Marielle Sophia Gross, M.D.'s MIPS final score?
The 2023 MIPS final score is 77.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.