Marc David Grobman, D.O.
Family Medicine Physician · Wilmington, DE
Marc David Grobman, D.O. is a family medicine physician with a practice address in Wilmington, Delaware, and NPI 1063484442, issued on Feb 1, 2006. Check the license (Delaware C2-0003657, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Marc David Grobman
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C2-0003657 DE
Self-reported in NPPES; status is on the state search - Practice location
- 3411 Silverside RD, Wilmington, DE 19810
- Phone
- (302) 479-0580
- Enumerated
- Feb 1, 2006
- Record last updated
- Dec 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (302) 479-0583
- Medicaid ID
- 0000318803 DE
- Medicare enrollment
- Enrolled (PECOS I20091130000177); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 518 in Delaware → Look up another NPI →
Also registered at 3411 Silverside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amanda Anderson, PSY.D.Clinical Psychologist1902591985
- Janet Azran, LCSWClinical Social Worker1194781740
- Abby Bugbee, PSYDClinical Psychologist1588309082
- Holly Catalano, PTPhysical Therapist1033264684
- Robert Catalano, MA,PT,CERT.MDTPhysical Therapist1700931581
- Margaret Conte, MDFamily Medicine Physician1265421028
Verify Marc David Grobman 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 C2-0003657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average family medicine physician in 2024
6,617 Medicare Part D claims for 430 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 570 claims were for opioids.
Most prescribed
- Atorvastatin Calcium424 claims
- Amlodipine Besylate243 claims
- Oxycodone Hcl196 claims
- Levothyroxine Sodium178 claims
- Alprazolam156 claims
- Omeprazole125 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: $1,837.81
104 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Marc David Grobman among 518 family medicine physician records in Delaware
Marc David Grobman, D.O. is one of 518 family medicine physician records with a practice address in Delaware. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1986 · median 2002 among the 323 with a school on file
- Record last updated2011 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 family medicine physician records list a practice address in Wilmington
They are 163 of the 6,291 NPPES records with a practice address in Wilmington, and 518 family medicine physician records in Delaware.
All 518 in Delaware → Every provider in Wilmington → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Margaret Conte, MDWilmington, DE 198101265421028
- Jeffrey Cramer, MDWilmington, DE 198101912981473
- John Daly, M.D.Wilmington, DE 198101134109101
- Kristine Diehl, MDWilmington, DE 198101245213933
- Tha Dun, MDWilmington, DE 198101235240524
- Valerie Elener, M.D.Wilmington, DE 198101801900816
- James Fierro, D.O.Wilmington, DE 198101154345379
- Jan Gavis, DOWilmington, DE 198101972663524
Common questions
What is Marc David Grobman, D.O.'s NPI number?
Marc David Grobman, D.O.'s National Provider Identifier (NPI) is 1063484442, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc David Grobman, D.O. located?
The NPPES record lists a practice address at 3411 Silverside RD, Wilmington, DE, 19810. Phone: (302) 479-0580. Providers update this record themselves, so call before visiting.
How can I verify Marc David Grobman, D.O.'s license?
NPPES lists Delaware license number C2-0003657, 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 Marc David Grobman, D.O. prescribe under Medicare Part D?
In 2024, Marc David Grobman, D.O. had 6,617 Medicare Part D claims for 430 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.