GRETCHEN ANNE LAMM LPC, LLP
NPI 1841838604
Counselor in Clarkston, MI
About Gretchen Anne Lamm Lpc, Llp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRETCHEN ANNE LAMM LPC, LLP (NPI 1841838604) is an individual counselor in Clarkston, Michigan, licensed in Michigan (6401224092) and active in the NPI registry since December 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gretchen Anne Lamm Lpc, Llp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Gretchen Lamm reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Clarkston, MI 48346
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Richard Kneip Phd PC
- 347 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CLARKSTON, MI 48346
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gretchen Lamm's NPI number?
The NPI number for Gretchen Lamm is 1841838604. It was assigned to this individual provider in the NPPES registry on December 11, 2019. The provider is also known as Gretchen Anne Mccormick Lpc, LLP.
Where is Gretchen Lamm located?
Gretchen Lamm practices at 6548 Town Center Dr Ste D, Clarkston, MI 48346. The listed phone number is (248) 600-5226.
What is Gretchen Lamm's specialty?
The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.
Is Gretchen Lamm enrolled in Medicare?
Yes. Gretchen Lamm is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Gretchen Lamm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Lamm reassigns Medicare benefits to Richard Kneip, Ph.D., P.C. (Clarkston, MI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretchen Lamm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gretchen Lamm accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Oscar Insurance Company, Priority Health and UnitedHealthcare list Gretchen Lamm as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gretchen Lamm was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Gretchen Anne Lamm, LPC, LLP · NPI 1841838604
Counselor provider in Clarkston, Michigan. Individual provider, active in the CMS NPPES registry since December 11, 2019.
## Identity
- **NPI:** 1841838604 (Entity type: Individual)
- **Enumerated:** December 11, 2019
- **Primary specialty:** Counselor · taxonomy 101Y00000X
- **State license:** 6401224092 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 6548 TOWN CENTER DR STE D, Clarkston, MI 48346-4823
- **Phone:** (248) 600-5226
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Richard Kneip, Ph.D., P.C. (NPI 1679739700, Clarkston, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** September 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1841838604) · Data from the CMS NPPES public registry.