DAVID GROBBEL LMSW
NPI 1659463735
Social Worker - Clinical in Troy, MI
About David Grobbel Lmsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID GROBBEL LMSW (NPI 1659463735) is an individual clinical provider in Troy, Michigan, licensed in Michigan (6801066722) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses
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
David Grobbel Lmsw 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 David Grobbel 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48084 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 David Grobbel's NPI number?
The NPI number for David Grobbel is 1659463735. It was assigned to this individual provider in the NPPES registry on September 28, 2006.
Where is David Grobbel located?
David Grobbel practices at 888 W Big Beaver Rd Ste 1450, Troy, MI 48084. The listed phone number is (248) 244-8644.
What is David Grobbel's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is David Grobbel enrolled in Medicare?
Yes. David Grobbel 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 David Grobbel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Grobbel 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 David Grobbel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Grobbel 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 David Grobbel 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 David Grobbel was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# David Grobbel, LMSW · NPI 1659463735
Clinical provider in Troy, Michigan. Individual provider, active in the CMS NPPES registry since September 28, 2006.
## Identity
- **NPI:** 1659463735 (Entity type: Individual)
- **Enumerated:** September 28, 2006
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 6801066722 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 888 W BIG BEAVER RD STE 1450, Troy, MI 48084-4762
- **Phone:** (248) 244-8644 · **Fax:** (248) 244-1330
## 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 1990
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1659463735) · Data from the CMS NPPES public registry.