Doctor profile · Federal record
Dr. John Gavencak, DC
Chiropractor (CMS: Chiropractic) · Center Moriches, NY
- NPI 1104911262
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
326 Main St
Center Moriches, NY 119343509
(631) 399-8888
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 10, 2009
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- New York #X010539
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104911262. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,600
Distinct HCPCS
1
Medicare allowed
$49,867
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 1,600 | 197 | $31 |
In context: peer comparison
Among 2 peers in Center Moriches Chiropractor, average services per provider: 1,316. This provider delivers 1.2× the peer median.Frequently asked questions
What is Dr. John Gavencak's medical specialty?
Dr. John Gavencak practices Chiropractor in Center Moriches, NY.
Where does Dr. John Gavencak practice?
Dr. John Gavencak practices at 326 Main St, Center Moriches, NY 119343509. Office phone: 6313998888.
What is Dr. John Gavencak's NPI?
Dr. John Gavencak's National Provider Identifier (NPI) is 1104911262, issued by NPPES.
Does Dr. John Gavencak accept Medicare assignment?
Yes. Dr. John Gavencak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Gavencak commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.