Mackenzie Nelson, MD
NPI 1023765138 · General Practice Physician · Bethesda, MD
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mackenzie Nelson, MD is a General Practice Physician provider in Bethesda, MD (NPI 1023765138).
Provider details
- NPI number
- 1023765138
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 0101279917 (VA)
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
4 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
- 2022-03-08
- Last updated
- 2023-12-17
- Certified
- 2023-12-17
Frequently asked questions
- What is Mackenzie Nelson's NPI number?
- Mackenzie Nelson's National Provider Identifier (NPI) is 1023765138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenzie Nelson's specialty?
- Mackenzie Nelson is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Mackenzie Nelson located?
- Mackenzie Nelson's practice location on file with NPPES is 8901 Wisconsin Ave, Bethesda, MD 20889-0004.
- What is Mackenzie Nelson's phone number?
- The practice phone number listed in the NPPES registry for Mackenzie Nelson is (301) 400-2838.
- Does Mackenzie Nelson accept Medicare?
- Mackenzie Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mackenzie Nelson's NPI active?
- Yes — Mackenzie Nelson's NPI (1023765138) is active in the NPPES registry as of the last update on 2023-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.