Frederick J. Denstman, M.D.
Colon & Rectal Surgery Physician · Newark, DE
Frederick J. Denstman, M.D. is a colon & rectal surgery physician with a practice address in Newark, Delaware, and NPI 1538197769, issued on Jun 28, 2006. Check the license (Delaware C10002596, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Frederick J. Denstman
- Credential
- M.D.
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- C10002596 DE
Self-reported in NPPES; status is on the state search - Practice location
- 4745 Olgetown Stanton RD, Newark, DE 19713
- Phone
- (302) 737-5444
- Enumerated
- Jun 28, 2006
- Record last updated
- Nov 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100423000128); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1979
- Entity
- Type 1 · individual
7 nearest colon & rectal surgery physician records → All 8 in Delaware → Look up another NPI →
Verify Frederick J. Denstman 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 C10002596Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average colon & rectal surgery physician in 2024
265 Medicare Part D claims for 187 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf134 claims
- Metronidazole27 claims
- Neomycin Sulfate25 claims
- Suprep11 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
- Christiana Care Health Services IncWilmington, DE
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 Delaware
There are 8 colon & rectal surgery physician records in Delaware.
All 8 in Delaware → Every provider in Newark → Colon & Rectal Surgery Physician nationwide →
The 7 colon & rectal surgery physician records with the nearest ZIP codes
- Carey Nathan, M.D.Newark, DE 197131609802172
- David Palange, D.O.Newark, DE 197131750776951
- Shanthi Shakamuri, M.D.Newark, DE 197131174559371
- Sachin Vaid, MDNewark, DE 197131891950879
- Assar Rather, M.D.Dover, DE 199041174834097
- Michele Thomas, M.D.Lewes, DE 199581700822848
- Elsa Goldstein, M.D.Rehoboth Beach, DE 199711508868696
Common questions
What is Frederick J. Denstman, M.D.'s NPI number?
Frederick J. Denstman, M.D.'s National Provider Identifier (NPI) is 1538197769, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick J. Denstman, M.D. located?
The NPPES record lists a practice address at 4745 Olgetown Stanton RD, Newark, DE, 19713. Phone: (302) 737-5444. Providers update this record themselves, so call before visiting.
How can I verify Frederick J. Denstman, M.D.'s license?
NPPES lists Delaware license number C10002596, 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 Frederick J. Denstman, M.D. prescribe under Medicare Part D?
In 2024, Frederick J. Denstman, M.D. had 265 Medicare Part D claims for 187 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.
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.