Mcmackin & Zimnoch, PC
NPI 1962667048 · Internal Medicine Physician · Washington, DC
Mcmackin & Zimnoch, PC is a Internal Medicine Physician organization in Washington, DC (NPI 1962667048).
Provider details
- NPI number
- 1962667048
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Christopher Mcmackin, President(202) 296-0043
- License
- 16615 (DC)
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
17 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
- 2008-07-28
- Last updated
- 2013-10-15
Frequently asked questions
- What is Mcmackin & Zimnoch, PC's NPI number?
- Mcmackin & Zimnoch, PC's National Provider Identifier (NPI) is 1962667048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mcmackin & Zimnoch, PC?
- Mcmackin & Zimnoch, PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mcmackin & Zimnoch, PC located?
- Mcmackin & Zimnoch, PC's practice location on file with NPPES is 2311 M St Nw, Washington, DC 20037-1445.
- What is Mcmackin & Zimnoch, PC's phone number?
- The practice phone number listed in the NPPES registry for Mcmackin & Zimnoch, PC is (202) 296-0043.
- Who is the authorized official for Mcmackin & Zimnoch, PC?
- The authorized official listed on Mcmackin & Zimnoch, PC's NPPES record is Christopher Mcmackin, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mcmackin & Zimnoch, PC's NPI active?
- Yes — Mcmackin & Zimnoch, PC's NPI (1962667048) is active in the NPPES registry as of the last update on 2013-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.