Gretchen Lamm, LLP
NPI 1841838604 · Counselor · Clarkston, MI
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Lamm, LLP is a Counselor provider in Clarkston, MI (NPI 1841838604).
Provider details
- NPI number
- 1841838604
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Credential
- LLP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6401224092 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2019-12-11
- Last updated
- 2026-02-24
- Certified
- 2026-02-24
Frequently asked questions
- What is Gretchen Lamm's NPI number?
- Gretchen Lamm's National Provider Identifier (NPI) is 1841838604, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Lamm's specialty?
- Gretchen Lamm is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Gretchen Lamm located?
- Gretchen Lamm's practice location on file with NPPES is 6548 Town Center Dr Ste D, Clarkston, MI 48346-4823.
- What is Gretchen Lamm's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Lamm is (248) 600-5226.
- Does Gretchen Lamm accept Medicare?
- Gretchen Lamm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Lamm's NPI active?
- Yes — Gretchen Lamm's NPI (1841838604) is active in the NPPES registry as of the last update on 2026-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.