IndividualActive
Matthew Hermann, MD
NPI 1821039355 · Internal Medicine Physician · Billings, MT
Matthew Hermann, MD is a Internal Medicine Physician provider in Billings, MT (NPI 1821039355).
Provider details
- NPI number
- 1821039355
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 10346 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1233 N 30th St
Billings, MT 59101-0127
Phone: (406) 237-3851
Fax: (406) 237-3855
Street-level locationGet directions
Mailing address
1233 N 30th St
Billings, MT 59101-0127
Registry dates
- Enumerated
- 2006-06-08
- Last updated
- 2011-03-01
Frequently asked questions
- What is Matthew Hermann's NPI number?
- Matthew Hermann's National Provider Identifier (NPI) is 1821039355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Hermann's specialty?
- Matthew Hermann is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Hermann located?
- Matthew Hermann's practice location on file with NPPES is 1233 N 30th St, Billings, MT 59101-0127.
- What is Matthew Hermann's phone number?
- The practice phone number listed in the NPPES registry for Matthew Hermann is (406) 237-3851.
- Is Matthew Hermann's NPI active?
- Yes — Matthew Hermann's NPI (1821039355) is active in the NPPES registry as of the last update on 2011-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.