NPPES file of Aug 9, 2026

Robert B. Den, MD

Radiation Oncology Physician · Philadelphia, PA

Robert B. Den, MD is a radiation oncology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1083741433, issued on Feb 27, 2007. Check the license (Pennsylvania MD442953, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083741433
Name
Robert B. Den
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
MD442953 PA
L-228192 MA
Self-reported in NPPES; status is on the state search
Practice location
111 S 11TH St, Philadelphia, PA 19107
Phone
(215) 955-6702
Enumerated
Feb 27, 2007
Record last updated
Mar 24, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(215) 955-5331
Medicaid IDs
0265454 NJ
102612249 PA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest radiation oncology physician records → All 383 in Pennsylvania → Look up another NPI →

Also registered at 111 S 11TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Azza AbubakerNephrology Physician1821732298
  2. Robert Adamo, M.D.Vascular & Interventional Radiology Physician1093922528
  3. Niamh Adams, MB BCH BAODiagnostic Neuroimaging (Radiology) Physician1144706490
  4. David AdamskiAnesthesiology Physician1134242001
  5. Bronia AgressEmergency Medicine Physician1922591767
  6. Kristin Ahern, AGACNPAcute Care Nurse Practitioner1922406941

Verify Robert B. Den in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD442953    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Robert B. Den among 383 radiation oncology physician records in Pennsylvania

Robert B. Den, MD is one of 383 radiation oncology physician records with a practice address in Pennsylvania. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 49% of them.

  • NPI issued2007 · 49% of these records are older, 44% newer
  • In a Medicare fileNo · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 75% of these records are
  • Record last updated2016 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Pennsylvania

There are 383 radiation oncology physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 383 in Pennsylvania → Every provider in Philadelphia → Radiation Oncology Physician nationwide →

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Pramila Anne, M.D.Philadelphia, PA 191071982626321
  2. Voichita Bar Ad, M.D.Philadelphia, PA 191071730135393
  3. Joseph Caster, MDPhiladelphia, PA 191071033470604
  4. Adam Dicker, M.D.Philadelphia, PA 191071558383984
  5. Jessica LeePhiladelphia, PA 191071932562758
  6. Gregor Manukian, M.D., PH.D.Philadelphia, PA 191071245624345
  7. Bryan Pukenas, MDPhiladelphia, PA 191071588713499
  8. Jeffrey Rosenstock, MDPhiladelphia, PA 191071245262567

Common questions

What is Robert B. Den, MD's NPI number?

Robert B. Den, MD's National Provider Identifier (NPI) is 1083741433, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert B. Den, MD located?

The NPPES record lists a practice address at 111 S 11TH St, Philadelphia, PA, 19107. Phone: (215) 955-6702. Providers update this record themselves, so call before visiting.

How can I verify Robert B. Den, MD's license?

NPPES lists Pennsylvania license number MD442953, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.