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Dr. Jacob Steven Schaeffer, MD
NPI1790077022PAC ID0042448979
- Medicare services, 2024
- 574
- Medicare patients, 2024
- 382
- Part D claims, 2024
- 299
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 401 9th Avenue NW Post Office Box 1210, Watertown, SD 57201
- Practice phone
- Call (605) 882-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Schaeffer'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.
Dr. Jacob Steven Schaeffer is a general surgeon in Watertown, South Dakota
Dr. Schaeffer practices at Sanford Health Watertown in Watertown, South Dakota, part of Sanford Health.
Dr. Schaeffer's NPI, 1790077022, was assigned on May 4, 2011. Dr. Schaeffer graduated from Sanford School of Medicine of University of South Dakota in 2011. Dr. Schaeffer holds South Dakota license 9864.
NPI and contact details
- NPI
- 1790077022NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042448979
- NPI enumeration date
- May 4, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (605) 882-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jacob Steven Schaeffer practices at Sanford Health Watertown in Watertown, South Dakota
Dr. Schaeffer's primary practice is Sanford Health Watertown, at 401 9th Avenue NW Post Office Box 1210, Watertown, SD 57201 in Codington County. The practice phone is (605) 882-7000.
- Sanford Health Watertown401 9th Avenue NW Post Office Box 1210, Watertown, SD 57201 · Codington CountyPhone(605) 882-7000
Source: Dmand AI Affiliation Data
Dr. Jacob Steven Schaeffer is affiliated with 6 sites of care and 1 medical group
Dr. Schaeffer's primary practice is Sanford Health Watertown in Watertown, South Dakota, part of Sanford Health. Dr. Schaeffer is also affiliated with Ortonville Hospital. The medical group on file is Prairie Lakes Healthcare System. Dmand AI also links Dr. Schaeffer to 2 more hospitals, 1 home health agency and 1 hospice, each named with a free account. Dr. Schaeffer's employer is on file too: a hospital.
Ortonville HospitalPrairie Lakes Healthcare System2 hospitalsNames with a free account1 home health agencyName with a free account1 hospiceName with a free accountEmployer: hospitalName with a free account
See all 7 affiliations for Dr. SchaefferSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jacob Steven Schaeffer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schaeffer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sanford Health Watertown | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jacob Steven Schaeffer is one of 105 general surgeons in South Dakota
Surgery is Dr. Schaeffer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Schaeffer is licensed in South Dakota.
Specialties and state licenses
- Surgery, South DakotaPrimary
General surgeons near Dr. Schaeffer
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
105general surgeons in South Dakota
3general surgeons in Watertown
3general surgeons at Sanford Health WatertownSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jacob Steven Schaeffer billed Medicare for 574 services in 2024
CMS data shows 574 Medicare services from Dr. Schaeffer across 17 procedure codes in 2024, for 382 Medicare patients. Medicare paid $60,994 for them.
Medicare services, 2024574
Medicare patients382
Paid by Medicare$60,994
Procedure codes17
Dr. Schaeffer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2052024: 30147%
- Office and hospital visits
- 2023: 1812024: 22725%
- Other services
- 2023: 292024: 3417%
- Tests and treatments
- 2023: 132024: 128%
Where Dr. Schaeffer's Medicare services took place, 2024
- In an office366%
- In a facility53894%
Dr. Schaeffer compared with the South Dakota median for general surgeons, 2024
- Dr. Schaeffer
- South Dakota median
- Medicare services
- 574vs 1783.2 times
- Medicare patients
- 382vs 1622.4 times
- Part D claims
- 230vs 366.4 times
Medians across 105 general surgeons in South Dakota with Dmand AI profiles that report each measure.
Dr. Schaeffer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Schaeffer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schaeffer and other general surgeons in South Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jacob Steven Schaeffer treated 382 Medicare patients in 2024, average age 72
CMS counts 382 Medicare patients who saw Dr. Schaeffer in 2024. The largest group is 65 to 74, with 198 patients. 70% of them have high blood pressure, and 69% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Schaeffer's median patient age at 71, with 50% women.
Medicare patients, 2024382
Average age72
Average risk score1.31
Also on Medicaid12%
Dr. Schaeffer's Medicare patients by age, 2024
Dr. Schaeffer's Medicare patients by sex, 2024
- Women22659%
- Men15641%
Chronic conditions among Dr. Schaeffer's Medicare patients, 2024
- High blood pressure70%
- High cholesterol69%
- Arthritis34%
- Diabetes29%
- Anxiety27%
- Mood disorders27%
- Chronic kidney disease26%
- Depression26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schaeffer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jacob Steven Schaeffer wrote 299 Medicare Part D claims in 2024
In 2024, Dr. Schaeffer wrote 299 Medicare Part D claims for 223 patients. 92% of them were for generic drugs. CMS names the drug for 230 of them, across 5 drugs with 11 or more claims each, at $2,729 in total drug cost. In 2023, CMS named 149 claims across 3 drugs.
Part D claims, 2024299
Drugs named by CMS5
Total drug cost$2,729
Part D patients223
Dr. Schaeffer's Part D claims by kind of drug, 2024
- Generic275 claims92%
- Brand-name24 claims8%
Dr. Schaeffer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Schaeffer's Part D claims, 2024
- Opioids22%65 of 299 claims
- Antibiotics14%42 of 299 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1492024: 23054%
Drugs named by CMS: 5 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jacob Steven Schaeffer ranks in the 79th percentile for colonoscopy in Medicare
Dr. Schaeffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 97 procedures of colonoscopy by Dr. Schaeffer, more than 79% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Schaeffer ranks in Medicare procedure volume
- Colonoscopy
- 79th percentile97 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 74th percentile90 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jacob Steven Schaeffer has 1 publication on record
Dmand AI links 1 paper to Dr. Schaeffer in 2017. Dr. Schaeffer's most frequent co-author is Clark A. Davis, MD.
Papers1
Dr. Schaeffer's most frequent co-authors
Recent publications by Dr. Schaeffer
See who Dr. Schaeffer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schaeffer works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jacob Steven Schaeffer received $493 in industry payments from 2018 to 2025
CMS Open Payments shows 18 general payments to Dr. Schaeffer from 9 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Organogenesis Inc. paid the most, $141.
General payments to Dr. Schaeffer by program year, 2018 to 2025
Companies that paid Dr. Schaeffer the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jacob Steven Schaeffer graduated from Sanford School of Medicine of University of South Dakota
Dr. Schaeffer graduated from Sanford School of Medicine of University of South Dakota in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jacob Steven Schaeffer'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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 Dr. Jacob Steven Schaeffer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jacob Steven Schaeffer's NPI number?
Dr. Jacob Steven Schaeffer's NPI number is 1790077022. It was assigned on May 4, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Jacob Steven Schaeffer?
Dr. Jacob Steven Schaeffer is a general surgeon in Watertown, South Dakota. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Jacob Steven Schaeffer practice?
Dr. Schaeffer practices at 401 9th Avenue NW Post Office Box 1210, Watertown, SD 57201. Dr. Schaeffer's primary practice is Sanford Health Watertown in Watertown, South Dakota, part of Sanford Health. Dmand AI also links Dr. Schaeffer to 2 hospitals, 1 home health agency and 1 hospice.
What is Dr. Jacob Steven Schaeffer's office phone number?
The practice phone on file for Dr. Schaeffer is (605) 882-7000.
What is Dr. Jacob Steven Schaeffer's medical license number?
Dr. Schaeffer holds South Dakota license 9864.
Which hospitals is Dr. Jacob Steven Schaeffer affiliated with?
Dr. Schaeffer practices at Sanford Health Watertown in Watertown, South Dakota. Dr. Schaeffer is also affiliated with Ortonville Hospital. Dmand AI links Dr. Schaeffer to 2 more hospitals.
What medical group is Dr. Jacob Steven Schaeffer part of?
Dr. Schaeffer is linked to Prairie Lakes Healthcare System.
Does Dr. Jacob Steven Schaeffer accept Medicare?
Yes. CMS data shows Dr. Schaeffer billed Medicare for 574 services in 2024, and Dr. Schaeffer accepts Medicare assignment.
How many Medicare patients does Dr. Jacob Steven Schaeffer see?
CMS counts 382 Medicare patients who saw Dr. Schaeffer in 2024, with an average age of 72.
What services does Dr. Jacob Steven Schaeffer bill to Medicare?
In 2024, Dr. Schaeffer's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (43239) and office visit, established patient (99213).
Show 6 more questionsShow fewer questions
Where did Dr. Jacob Steven Schaeffer go to medical school?
Dr. Schaeffer graduated from Sanford School of Medicine of University of South Dakota in 2011.
What drugs does Dr. Jacob Steven Schaeffer prescribe most?
In 2024 Medicare Part D data, Dr. Schaeffer's most prescribed drugs by claims were Gavilyte-G, Oxycodone HCl and Peg-3350 And Electrolytes.
Has Dr. Jacob Steven Schaeffer received payments from drug or device companies?
CMS Open Payments shows $493 in general payments to Dr. Schaeffer from 9 companies from 2018 to 2025. The largest total came from Organogenesis Inc.
How long has Dr. Jacob Steven Schaeffer been practicing?
Dr. Schaeffer graduated from medical school in 2011, 15 years ago.
Does Dr. Jacob Steven Schaeffer do research?
Dmand AI links 1 publication to Dr. Schaeffer.
Who does Dr. Jacob Steven Schaeffer publish with?
Dr. Schaeffer's most frequent co-authors are Clark A. Davis, MD (1 shared paper).
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