Theresa Larsen, M.D.
NPI 1477551166 · Internal Medicine Physician · Lake Orion, MI
Theresa Larsen, M.D. is a Internal Medicine Physician provider in Lake Orion, MI (NPI 1477551166).
Provider details
- NPI number
- 1477551166
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301407146 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2005-07-07
- Last updated
- 2013-10-03
Frequently asked questions
- What is Theresa Larsen's NPI number?
- Theresa Larsen's National Provider Identifier (NPI) is 1477551166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Larsen's specialty?
- Theresa Larsen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Theresa Larsen located?
- Theresa Larsen's practice location on file with NPPES is 1375 S Lapeer Rd, Lake Orion, MI 48360-1421.
- What is Theresa Larsen's phone number?
- The practice phone number listed in the NPPES registry for Theresa Larsen is (248) 693-5700.
- Is Theresa Larsen's NPI active?
- Yes — Theresa Larsen's NPI (1477551166) is active in the NPPES registry as of the last update on 2013-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.