Alison Rentz, MD
NPI 1356332621 · Neonatal-Perinatal Medicine Physician · Billings, MT
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alison Rentz, MD is a Neonatal-Perinatal Medicine Physician provider in Billings, MT (NPI 1356332621).
Provider details
- NPI number
- 1356332621
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Specialist174400000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$75 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-04
- Last updated
- 2016-07-19
Frequently asked questions
- What is Alison Rentz's NPI number?
- Alison Rentz's National Provider Identifier (NPI) is 1356332621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alison Rentz's specialty?
- Alison Rentz is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alison Rentz located?
- Alison Rentz's practice location on file with NPPES is 1233 N 30th St, Billings, MT 59101-0127.
- What is Alison Rentz's phone number?
- The practice phone number listed in the NPPES registry for Alison Rentz is (406) 237-7076.
- Does Alison Rentz accept Medicare?
- Alison Rentz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alison Rentz's NPI active?
- Yes — Alison Rentz's NPI (1356332621) is active in the NPPES registry as of the last update on 2016-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.