Ann S Mercer MD PA
NPI 1164613261 · Internal Medicine Physician · Las Cruces, NM
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann S Mercer MD PA is a Internal Medicine Physician organization in Las Cruces, NM (NPI 1164613261).
Provider details
- NPI number
- 1164613261
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ann Mercer, President(505) 522-6900
- License
- 84-79 (NM)
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
18 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
- 2007-08-05
- Last updated
- 2007-12-06
Frequently asked questions
- What is Ann S Mercer MD PA's NPI number?
- Ann S Mercer MD PA's National Provider Identifier (NPI) is 1164613261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ann S Mercer MD PA?
- Ann S Mercer MD PA is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann S Mercer MD PA located?
- Ann S Mercer MD PA's practice location on file with NPPES is 2801 Missouri Ave Ste 12, Las Cruces, NM 88011-5061.
- What is Ann S Mercer MD PA's phone number?
- The practice phone number listed in the NPPES registry for Ann S Mercer MD PA is (505) 522-6900.
- Does Ann S Mercer MD PA accept Medicare?
- Ann S Mercer MD PA is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Ann S Mercer MD PA?
- The authorized official listed on Ann S Mercer MD PA's NPPES record is Ann Mercer, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ann S Mercer MD PA's NPI active?
- Yes — Ann S Mercer MD PA's NPI (1164613261) is active in the NPPES registry as of the last update on 2007-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.