CALVIN D RUFF LMSW
NPI 1831436336
Social Worker - Clinical in Kalamazoo, MI
About Calvin D Ruff Lmsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CALVIN D RUFF LMSW (NPI 1831436336) is an individual clinical provider in Kalamazoo, Michigan, licensed in Michigan (6801114624) and active in the NPI registry since January 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
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
Calvin D Ruff 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49007 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
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 Calvin Ruff's NPI number?
The NPI number for Calvin Ruff is 1831436336. It was assigned to this individual provider in the NPPES registry on January 4, 2013.
Where is Calvin Ruff located?
Calvin Ruff practices at 625 Harrison St, Kalamazoo, MI 49007. The listed phone number is (269) 323-1954.
What is Calvin Ruff's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Calvin Ruff enrolled in Medicare?
Yes. Calvin Ruff 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 Calvin Ruff 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 1 other insurer list Calvin Ruff 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 Calvin Ruff was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.
# Calvin D Ruff, LMSW · NPI 1831436336
Clinical provider in Kalamazoo, Michigan. Individual provider, active in the CMS NPPES registry since January 4, 2013.
## Identity
- **NPI:** 1831436336 (Entity type: Individual)
- **Enumerated:** January 4, 2013
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 6801114624 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 625 HARRISON ST, Kalamazoo, MI 49007-3681
- **Phone:** (269) 323-1954 · **Fax:** (269) 276-0201
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** February 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1831436336) · Data from the CMS NPPES public registry.