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Gary Merkwan, CHIROPRACTOR
NPI 1528155926 · Chiropractor · Yankton, SD
Gary Merkwan, CHIROPRACTOR is a Chiropractor provider in Yankton, SD (NPI 1528155926).
Provider details
- NPI number
- 1528155926
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- CHIROPRACTOR
- Sex
- Male
- Sole proprietor
- No
- License
- 561 (SD)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
2708 East South Dakota Highway 50
Yankton, SD 57078
Phone: (605) 665-3503
Street-level locationGet directions
Mailing address
2708 East South Dakota Highway 50
Yankton, SD 57078
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gary Merkwan's NPI number?
- Gary Merkwan's National Provider Identifier (NPI) is 1528155926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Merkwan's specialty?
- Gary Merkwan is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Gary Merkwan located?
- Gary Merkwan's practice location on file with NPPES is 2708 East South Dakota Highway 50, Yankton, SD 57078.
- What is Gary Merkwan's phone number?
- The practice phone number listed in the NPPES registry for Gary Merkwan is (605) 665-3503.
- Is Gary Merkwan's NPI active?
- Yes — Gary Merkwan's NPI (1528155926) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.