DR. CLAY MARTIN CROSBY M.D.
NPI 1801200522
Internal Medicine in Piedmont, SC
About Dr. Clay Martin Crosby M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLAY MARTIN CROSBY M.D. (NPI 1801200522) is an individual internal medicine provider in Piedmont, South Carolina, licensed in South Carolina (37082) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Prisma Health Baptist Easley Hospital, and maintains a secondary practice location in Greenville.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 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
Dr. Clay Martin Crosby M.d. 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 Clay Crosby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Easley, SC 29640
- Reassigned Medicare billing, South Carolina enrollment
- 3,281 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.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Prisma Health Baptist Easley Hospital
Acute Care Hospitals · Easley, SCAnmed Health
Acute Care Hospitals · Anderson, SCPrisma Health Greenville Memorial Hospital
Acute Care Hospitals · Greenville, SCPrisma Health Patewood Hospital
Acute Care Hospitals · Greenville, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29673 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 9
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 Clay Crosby's NPI number?
The NPI number for Clay Crosby is 1801200522. It was assigned to this individual provider in the NPPES registry on June 20, 2014.
Where is Clay Crosby located?
Clay Crosby practices at 1115 Wren School Rd, Piedmont, SC 29673. The listed phone number is (864) 859-0740.
What is Clay Crosby's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Clay Crosby enrolled in Medicare?
Yes. Clay Crosby 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 Clay Crosby's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clay Crosby reassigns Medicare benefits to Prisma Health University Medical Group (Easley, SC). 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 Clay Crosby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Clay Crosby accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and InStil Health list Clay Crosby 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.
Is Clay Crosby affiliated with any hospitals?
According to CMS data, Clay Crosby is affiliated with Prisma Health Baptist Easley Hospital, Anmed Health, Prisma Health Greenville Memorial Hospital and Prisma Health Patewood Hospital.
When was this NPI record last updated?
The NPPES record for Clay Crosby was last updated on March 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Clay Martin Crosby, M.D. · NPI 1801200522
Internal Medicine physician in Piedmont, South Carolina. Individual provider, active in the CMS NPPES registry since June 20, 2014.
## Identity
- **NPI:** 1801200522 (Entity type: Individual)
- **Enumerated:** June 20, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 37082 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 1115 WREN SCHOOL RD, Piedmont, SC 29673-8033
- **Phone:** (864) 859-0740 · **Fax:** (864) 859-9008
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Prisma Health University Medical Group (NPI 1295218642, Easley, SC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 2014
## Record status
- **NPPES last updated:** March 23, 2024
- **Other identifiers:** Medicaid 370823 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1801200522) · Data from the CMS NPPES public registry.