Robert Dillman, MD FACP
NPI 1538225438 · Hematology & Oncology Physician · Newport Beach, CA
Robert Dillman, MD FACP is a Hematology & Oncology Physician provider in Newport Beach, CA (NPI 1538225438).
Provider details
- NPI number
- 1538225438
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD FACP
- Sex
- Male
- Sole proprietor
- No
- License
- C038008 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Dillman's NPI number?
- Robert Dillman's National Provider Identifier (NPI) is 1538225438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Dillman's specialty?
- Robert Dillman is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Dillman located?
- Robert Dillman's practice location on file with NPPES is One Hoag Drive, Newport Beach, CA 92658-6100.
- What is Robert Dillman's phone number?
- The practice phone number listed in the NPPES registry for Robert Dillman is (949) 764-8091.
- Is Robert Dillman's NPI active?
- Yes — Robert Dillman's NPI (1538225438) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.