Doctor profile · Federal record

Dr. Robert Gruenenfelder, D.C.

Chiropractor (CMS: Chiropractic) · Sweetwater, TN

  • NPI 1639177330
  • Accepts Medicare
  • 38 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
711 Highway 68
Sweetwater, TN 378741926
(423) 337-3761
fax (423) 337-9705

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
April 25, 2011
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
Tennessee #DC000619
Medicaid
TN #3674946

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639177330. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
628
Distinct HCPCS
2
Medicare allowed
$21,100
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 413 41 $38
98940 Chiropractic manipulative treatment, 1-2 spinal regions 215 29 $26

In context: peer comparison

Among 1 peers in Sweetwater Chiropractor, average services per provider: 314. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Gruenenfelder's medical specialty?
Dr. Robert Gruenenfelder practices Chiropractor in Sweetwater, TN.
Where does Dr. Robert Gruenenfelder practice?
Dr. Robert Gruenenfelder practices at 711 Highway 68, Sweetwater, TN 378741926. Office phone: 4233373761.
What is Dr. Robert Gruenenfelder's NPI?
Dr. Robert Gruenenfelder's National Provider Identifier (NPI) is 1639177330, issued by NPPES.
Does Dr. Robert Gruenenfelder accept Medicare assignment?
Yes. Dr. Robert Gruenenfelder accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Gruenenfelder commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941); Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.