Nathaniel Untch, MD
NPI 1699578500 · Internal Medicine Physician · Scottsdale, AZ
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Untch, MD is a Internal Medicine Physician provider in Scottsdale, AZ (NPI 1699578500).
Provider details
- NPI number
- 1699578500
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R81507 (AZ)
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
1 yr 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
- 2025-03-28
- Last updated
- 2025-07-23
- Certified
- 2025-07-23
Frequently asked questions
- What is Nathaniel Untch's NPI number?
- Nathaniel Untch's National Provider Identifier (NPI) is 1699578500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Untch's specialty?
- Nathaniel Untch is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Untch located?
- Nathaniel Untch's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259-5452.
- What is Nathaniel Untch's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Untch is (480) 301-8000.
- Does Nathaniel Untch accept Medicare?
- Nathaniel Untch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Untch's NPI active?
- Yes — Nathaniel Untch's NPI (1699578500) is active in the NPPES registry as of the last update on 2025-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.