Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark F. Ditmar, MD
Hospitalist Physician in Pomona, NJ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629168356
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark F. Ditmar
Credential MD
Sex Male
Practice address Atlanticare Regional Medical Center, Jimmie Leeds Road, Pomona, NJ, 08240
Phone (609) 652-1000
Fax (609) 748-5988
Enumeration date Oct 13, 2006
Last updated in NPPES May 7, 2008
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MA05362200 (NJ) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MA05362200 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0152005 | Medicaid | NJ | - |
| 5127068 | Medicaid | MD | - |
| 001053760 | Medicaid | PA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Mark Ditmar?
Mark Ditmar is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Dianna Lease Nurse Practitioner · Pomona, NJ NPI 1881778991 Rommel Celestial Neonatal-Perinatal Medicine Physician · Pomona, NJ NPI 1922159607 Taral Mehta Neonatal-Perinatal Medicine Physician · Pomona, NJ NPI 1043408859 Susan Thomas Lactation Consultant (Registered Nurse) · Pomona, NJ NPI 1306413018
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-07.