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MR. JOSEPH FRANK UNGER JR. D.C.
NPI 1770643108
Chiropractor in St Louis, MO

Active since December 08, 2006
2821 N BALLAS RD, SUITE 105, ST LOUIS, MO 63131(314) 872-9955(314) 872-3458 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mr. Joseph Frank Unger Jr. D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. JOSEPH FRANK UNGER JR. D.C. (NPI 1770643108) is an individual chiropractor in St Louis, Missouri, licensed in Missouri (CE004325) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1770643108
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameMR. JOSEPH FRANK UNGER JR.Credential: D.C.
Location Address2821 N BALLAS RD, SUITE 105St Louis, MO 63131-2314
Mailing Address2821 N Ballas Rd, Suite 105St. Louis, MO 63131-2314 · (314) 872-9955 · Fax (314) 872-3458
Phone(314) 872-9955
Fax(314) 872-3458
Sole ProprietorNo
Enumeration DateDecember 8, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1770643108 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
Licenses✔ Licensed in MO · CE004325✔ Licensed in FL · CH7135✔ Licensed in CO · 2988
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
2821 N BALLAS RD, St Louis, MO 63131
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINT43329MO
Medicare ID-Type Unspecified30769MO

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Joseph Frank Unger Jr. D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Joseph Unger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Atrium Health Services
Same address
Chiropractor
2821 N BALLAS RD STE 105
Saint Louis, MO 63131
  • Reassigned Medicare billing, Missouri enrollment
  • 6 clinicians in this Medicare group
NPI 1396414223 (314) 872-9955

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

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.

Chiropractic manipulative treatment, 1-2 spinal regions 98940
Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.
300 services40 patients

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.

JOSEPH AND NINA ZEIGLER, D.M.D.S, P.C.
Dentist
2821 N BALLAS RD, SUITE 200
SAINT LOUIS, MO 63131
St. Louis County (314) 872-7590
DR. LAWRENCE JAY LEVENS DDS, MS, PC
Dentist (Orthodontics and Dentofacial Orthopedics)
2821 N BALLAS RD, SUITE 155
SAINT LOUIS, MO 63131
St. Louis County (314) 872-3218
DR. AARON JAMES CREGGER D.D.S.
Dentist
2821 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 567-7737
ST LOUIS ORTHOPEDIC SURGERY, INC
Orthopaedic Surgery
2821 N BALLAS RD, SUITE C-15
SAINT LOUIS, MO 63131
St. Louis County (314) 983-0088
DR. KRISTINA BRAZIER D.C.
Chiropractor
2821 N BALLAS RD, SUITE 105
SAINT LOUIS, MO 63131
St. Louis County (314) 872-9955
DR. JINTANA J LATZER DC
Chiropractor
2821 N BALLAS RD, SUITE C5
ST LOUIS, MO 63131
St. Louis County (314) 432-7979
DR. JAMES ROBERT ETZKORN M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
2821 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 995-9718
GIUSEPPE ALIPERTI M.D.
Internal Medicine (Gastroenterology)
2821 N BALLAS RD, SUITE 115
SAINT LOUIS, MO 63131
St. Louis County (314) 628-9000

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 Joseph Unger's NPI number?

The NPI number for Joseph Unger is 1770643108. It was assigned to this individual provider in the NPPES registry on December 8, 2006.

Where is Joseph Unger located?

Joseph Unger practices at 2821 N Ballas Rd Suite 105, St Louis, MO 63131. The listed phone number is (314) 872-9955.

What is Joseph Unger's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Joseph Unger enrolled in Medicare?

Yes. Joseph Unger is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Joseph Unger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Unger reassigns Medicare benefits to Atrium Health Services (Saint Louis, MO). 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 Joseph Unger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joseph Unger 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.