Christopher Zajac, M.D.
NPI 1699708669 · Internal Medicine Physician · Baltimore, MD
Christopher Zajac, M.D. is a Internal Medicine Physician provider in Baltimore, MD (NPI 1699708669).
Provider details
- NPI number
- 1699708669
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0034249 (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
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
- 2006-07-09
- Last updated
- 2012-02-22
Frequently asked questions
- What is Christopher Zajac's NPI number?
- Christopher Zajac's National Provider Identifier (NPI) is 1699708669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Zajac's specialty?
- Christopher Zajac is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Zajac located?
- Christopher Zajac's practice location on file with NPPES is 9649 Belair Rd, Baltimore, MD 21236-1100.
- What is Christopher Zajac's phone number?
- The practice phone number listed in the NPPES registry for Christopher Zajac is (410) 256-9340.
- Is Christopher Zajac's NPI active?
- Yes — Christopher Zajac's NPI (1699708669) is active in the NPPES registry as of the last update on 2012-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.