What is Zac Williams's NPI number?

Zac Williams's National Provider Identifier (NPI) is 1164948543, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Zac Williams's specialty?

Zac Williams is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).

Where is Zac Williams located?

Zac Williams's practice location on file with NPPES is 6910 N Main St Unit 5, Granger, IN 46530-9681.

What is Zac Williams's phone number?

The practice phone number listed in the NPPES registry for Zac Williams is (574) 271-1111.

Does Zac Williams accept Medicare?

Zac Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Zac Williams's NPI active?

Yes — Zac Williams's NPI (1164948543) is active in the NPPES registry as of the last update on 2024-11-19.

IndividualActiveAccepts Medicare

Zac Williams, DC

NPI 1164948543 · Chiropractor · Granger, IN

Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Zac Williams, DC is a Chiropractor provider in Granger, IN (NPI 1164948543).

Provider details

NPI number: 1164948543
Entity type: Individual
Primary specialty: ChiropractorChiropractic Providers
Credential: DC
Sex: Male
Sole proprietor: No
License: 08002987A (IN)

Specialties & taxonomies

ChiropractorPrimary111N00000XLicense 08002987A (IN)
Chiropractic Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
8 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
181 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Chiropractic Manipulative Treatment, 3-4 Spinal Regions98941	181	$37

Typical Medicare-allowed amounts for these services range $37–$37 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Practice location

6910 N Main St Unit 5

Granger, IN 46530-9681

Phone: (574) 271-1111

Fax: (574) 271-1128

Street-level locationGet directions

Mailing address