Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GRETCHEN ANNE LAMM LPC, LLP
NPI 1841838604
Counselor in Clarkston, MI

Active since December 11, 2019PECOS EnrolledAccepts Medicare Assignment
6548 TOWN CENTER DR STE D, CLARKSTON, MI 48346(248) 600-5226 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 12, 2026, Jun 6, 2024, Dec 11, 2019 (3 updates tracked since 2019).

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

NPI1841838604
Entity TypeIndividualFemale
Primary Taxonomy101Y00000X
Provider Legal NameGRETCHEN ANNE LAMMCredential: LPC, LLP
Location Address6548 TOWN CENTER DR STE DClarkston, MI 48346-4823
Mailing Address5582 S 1st StKalamazoo, MI 49009-9429 · (269) 365-2925
Sole ProprietorYes
Medical School CMSOtherGraduated 2006
Enumeration DateDecember 11, 2019
Last NPPES UpdateAugust 12, 20263 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
NPI 1841838604 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License Licensed in MI · 6401224092
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
Also ListedPsychologistTaxonomy 103T00000X · License 6361000304 (MI)
6548 TOWN CENTER DR STE D, Clarkston, MI 48346

Other Names 1

Former Name (1)Gretchen Anne Mccormick Lpc, Llp

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID9537650627
PECOS Enrollment IDI20251117002924
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Marriage & Family Therapist
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Counselor
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Psychologist
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Social Worker (Clinical)
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Counselor
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Social Worker
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Psychologist
6548 TOWN CENTER DR STE D
CLARKSTON, MI 48346
Social Worker
6548 TOWN CENTER DR STE D
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.

What insurance does Gretchen Lamm accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community, Oscar Insurance Company and Priority Health and 2 other insurers 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 August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.