Michael J. Gross, MD
Internal Medicine Physician · Newark, DE
Michael J. Gross, MD is an internal medicine physician with a practice address in Newark, Delaware, and NPI 1396037313, issued on May 10, 2011. Check the license (Delaware C10010659, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Michael J. Gross
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C10010659 DE
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hygeia Dr, Newark, DE 19713
- Phone
- (302) 623-0188
- Enumerated
- May 10, 2011
- Record last updated
- May 28, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201211000420); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 200 Hygeia Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Valerie Acevedo, P.A.-CPhysician Assistant1932457405
- Sonia Adnan, MDInternal Medicine Physician1790915593
- Eunice Asibey, FNPFamily Nurse Practitioner1912231572
- Mamadou Bah, PAPhysician Assistant1619400157
- Kevin Bailey, PT, MPT, SCS, ATCPhysical Therapist1356372874
- Kathryn Benson, FNP BCFamily Nurse Practitioner1720084213
Verify Michael J. Gross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C10010659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
323 Medicare Part D claims for 89 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide23 claims
- Pantoprazole Sodium22 claims
- Gabapentin20 claims
- Metoprolol Succinate15 claims
- Eliquis14 claims
- Tamsulosin Hcl14 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: $35.56
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Cooper Physician Offices PACamden, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Gross among 600 internal medicine physician records in Delaware
Michael J. Gross, MD is one of 600 internal medicine physician records with a practice address in Delaware. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 51% of them.
- NPI issued2011 · 51% of these records are older, 47% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2008 among the 414 with a school on file
- Record last updated2015 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
240 internal medicine physician records list a practice address in Newark
They are 240 of the 4,662 NPPES records with a practice address in Newark, and 600 internal medicine physician records in Delaware.
All 600 in Delaware → Every provider in Newark → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Amato, DONewark, DE 197131942270707
- Joanne Brice, MDNewark, DE 197131811977093
- David Britchkow, MDNewark, DE 197131124020094
- Allison Buonocore, MDNewark, DE 197131609854504
- Allen Friedland, MDNewark, DE 197131306823471
- Brijendra Kumar, MDNewark, DE 197131528048709
- Qing Liu, MDNewark, DE 197131235109000
- Stephen Menaldino, MDNewark, DE 197131487632204
Common questions
What is Michael J. Gross, MD's NPI number?
Michael J. Gross, MD's National Provider Identifier (NPI) is 1396037313, issued on May 10, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Gross, MD located?
The NPPES record lists a practice address at 200 Hygeia Dr, Newark, DE, 19713. Phone: (302) 623-0188. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Gross, MD's license?
NPPES lists Delaware license number C10010659, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael J. Gross, MD prescribe under Medicare Part D?
In 2024, Michael J. Gross, MD had 323 Medicare Part D claims for 89 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.