Michael P. Sack, DC
- Medicare patients, 2026
- 11
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice locations
- 2
- Practice address
- 144 N Main St, Spearfish, SD 57783
- Practice phone
- Call (605) 644-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sack Chiropractic
Physician office · Spearfish, South Dakota
Find Michael Sack's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Michael P. Sack is a chiropractor in Spearfish, South Dakota
Michael Sack practices at Sack Chiropractic in Spearfish, South Dakota.
Michael Sack's NPI, 1639100076, was assigned on July 5, 2006. Michael Sack graduated from Western States College of Chiropractic in 1980. Michael Sack holds South Dakota license 588.
- NPI
- 1639100076NPI Registry (opens in a new tab)
- NPI enumeration date
- July 5, 2006
- NPI status
- Active
- Practice phone
- (605) 644-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Michael P. Sack practices at 2 locations in Spearfish, South Dakota
Michael Sack's primary practice is Sack Chiropractic, at 144 N Main St, Spearfish, SD 57783. The practice phone is (605) 644-1111. The NPI Registry lists Michael Sack's practice address as 208 N Main St, Spearfish, SD 57783.
- Sack ChiropracticPrimary144 N Main St, Spearfish, SD 57783Phone(605) 644-1111
- NPI Registry address208 N Main St, Spearfish, SD 57783 · Lawrence County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Michael P. Sack is affiliated with 1 site of care
Michael Sack's primary practice is Sack Chiropractic in Spearfish, South Dakota.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Michael P. Sack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Sack practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sack Chiropractic | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael P. Sack is one of 374 chiropractors in South Dakota
Chiropractor is Michael Sack's primary specialty in the NPI Registry, under taxonomy code 111N00000X. Michael Sack is licensed in South Dakota.
Specialties and state licenses
- Chiropractor, South DakotaPrimary
Chiropractors near Michael Sack
Counts of chiropractors with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Michael P. Sack treated 11 Medicare patients in 2026, average age 69
CMS counts 11 Medicare patients who saw Michael Sack in 2026. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Sack's median patient age at 49, with 0% women.
Michael Sack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women0%
- Men100%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael P. Sack graduated from Western States College of Chiropractic
Michael Sack graduated from Western States College of Chiropractic in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Michael P. Sack's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Michael P. Sack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael P. Sack's NPI number?
Michael P. Sack's NPI number is 1639100076. It was assigned on July 5, 2006, and it is active in the NPI Registry.
What does Michael P. Sack specialize in?
Michael P. Sack is a chiropractor in Spearfish, South Dakota. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does Michael P. Sack practice?
Michael Sack practices at 144 N Main St, Spearfish, SD 57783. Michael Sack also practices at 208 N Main St, Spearfish, SD 57783. Michael Sack's primary practice is Sack Chiropractic in Spearfish, South Dakota.
What is Michael P. Sack's office phone number?
The practice phone on file for Michael Sack is (605) 644-1111. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Michael P. Sack's email address?
Dmand AI checks professional and personal email addresses for Michael Sack through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Michael P. Sack's medical license number?
Michael Sack holds South Dakota license 588.
How many Medicare patients does Michael P. Sack see?
CMS counts 11 Medicare patients who saw Michael Sack in 2026, with an average age of 69.
Where did Michael P. Sack go to medical school?
Michael Sack graduated from Western States College of Chiropractic in 1980.
How long has Michael P. Sack been practicing?
Michael Sack graduated from medical school in 1980, 46 years ago.
What EHR does Michael P. Sack's practice use?
Dmand AI tracks the EHR system at Sack Chiropractic. The vendor and product are available with a free Dmand AI account.
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