Joel Hammer, M.D.
NPI 1053371179 · Anatomic Pathology & Clinical Pathology Physician · Baltimore, MD
Joel Hammer, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Baltimore, MD (NPI 1053371179).
Provider details
- NPI number
- 1053371179
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- D0031878 (MD)
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
20 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
- 2006-03-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joel Hammer's NPI number?
- Joel Hammer's National Provider Identifier (NPI) is 1053371179, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joel Hammer's specialty?
- Joel Hammer is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Joel Hammer located?
- Joel Hammer's practice location on file with NPPES is 9000 Franklin Square Dr, Baltimore, MD 21237-3901.
- What is Joel Hammer's phone number?
- The practice phone number listed in the NPPES registry for Joel Hammer is (443) 777-7000.
- Is Joel Hammer's NPI active?
- Yes — Joel Hammer's NPI (1053371179) 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.