1. Home
  2. Directory
  3. South Dakota
  4. Watertown
  5. Surgery
  6. NPI Profile

DR. NICHOLAS JOHN HARMS M.D.
NPI 1295965457
Surgery in Watertown, SD

Active since July 22, 2009PECOS EnrolledAccepts Medicare Assignment
94/100
CMS Quality Rating
901 4TH ST NW, WATERTOWN, SD 57201(605) 886-8471(605) 886-9317 Get Directions Write a Review

NPPES record last updated: November 1, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Nicholas John Harms M.d. NPPES

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

DR. NICHOLAS JOHN HARMS M.D. (NPI 1295965457) is an individual surgery provider in Watertown, South Dakota, licensed in South Dakota (14065) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS, is affiliated with Avera Mckennan Hospital & University Health Center, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1295965457
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. NICHOLAS JOHN HARMSCredential: M.D.
Location Address901 4TH ST NWWatertown, SD 57201-1558
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074 · (605) 328-9419
Phone(605) 886-8471
Fax(605) 886-9317
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateJuly 22, 2009
Last NPPES UpdateNovember 1, 2023
NPPES CertifiedNovember 1, 2023
✔ NPI 1295965457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in SD · 14065✔ Licensed in MI · 4301095264✔ Licensed in MN · 57567
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
901 4TH ST NW, Watertown, SD 57201
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Nicholas John Harms M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486879426
PECOS Enrollment IDI20231205000095
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show Nicholas Harms reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sanford Clinic
Same address
Family Medicine
901 4TH ST NW
Watertown, SD 57201
  • Reassigned Medicare billing, South Dakota enrollment
  • 826 clinicians in this Medicare group
NPI 1801840632 (605) 886-8471
Sanford Health Network
24 mi
Critical Access
701 3RD AVE S
Clear Lake, SD 57226
  • Reassigned Medicare billing, South Dakota and Minnesota enrollments
  • Also billed through NPI 1780781054 (Minnesota)
  • 22 clinicians in this Medicare group
NPI 1851305296 (605) 874-2141
Avera Queen Of Peace
42 mi
Physician Assistant
115 SECOND ST SE
De Smet, SD 57231
  • Reassigned Medicare billing, South Dakota enrollment
  • Also billed through NPI 1992466635 (South Dakota)
  • 227 clinicians in this Medicare group
NPI 1053557967 (605) 854-3834
Avera Marshall
44 mi
Optometrist
130 1ST ST W STE 105
Canby, MN 56220
  • Reassigned Medicare billing, Minnesota enrollment
  • 260 clinicians in this Medicare group
NPI 1952179939 (507) 223-5818
County Of Murray
92 mi
Critical Access
2042 JUNIPER AVE
Slayton, MN 56172
  • Reassigned Medicare billing, Minnesota enrollment
  • 87 clinicians in this Medicare group
NPI 1053497214 (507) 836-1277
Sanford Medical Center
97 mi
Family Medicine
1420 W 22NDST STE 104
Sioux Falls, SD 57105
  • Reassigned Medicare billing, Minnesota enrollment
  • 57 clinicians in this Medicare group
NPI 1093090342 (605) 328-4897

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 8

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
40 services40 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
36 services35 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
29 services29 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
23 services23 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
23 services20 patients
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500
Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
23 services23 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Avera Mckennan Hospital & University Health Center

Acute Care Hospitals · Sioux Falls, SD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430016
Location1325 S Cliff AveSioux Falls, SD 57117 · Minnehaha County
Emergency services Birthing friendly

Platte Health Center

Critical Access Hospitals · Platte, SD
OwnershipVoluntary non-profit - Private
CMS Certification Number431306
Location601 E 7th St Post Office Box 200Platte, SD 57369 · Charles Mix County
Emergency services

Avera St Benedict Health Center - Cah

Critical Access Hospitals · Parkston, SD
OwnershipVoluntary non-profit - Private
CMS Certification Number431330
Location401 West Glynn DriveParkston, SD 57366 · Hutchinson County

Avera Gregory Hospital

Critical Access Hospitals · Gregory, SD
OwnershipVoluntary non-profit - Private
CMS Certification Number431338
Location110 S Logan AveGregory, SD 57533 · Gregory County
Emergency services

Avera Queen Of Peace

Critical Access Hospitals · Mitchell, SD
OwnershipVoluntary non-profit - Private
CMS Certification Number431340
Location525 N FosterMitchell, SD 57301 · Davison County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 57201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.21 typical visit price
range $55.52 – $167.23
Typical copayment $21.30 (range $13.88 – $41.80)
Most-billed visit code 99203
Established Patient
$69.20 typical visit price
range $18.08 – $137.08
Typical copayment $17.30 (range $4.52 – $34.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality84.79
Promoting Interoperability98.22
Improvement Activities40

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.

BETHANY K SCHULTZ CNP
Nurse Practitioner (Family)
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471
ALAN R CHRISTENSEN MD
Surgery
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471
NICCOLE J MACK D.P.T.
Physical Therapist
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471
ALLEN L HOEKMAN MD
Pediatrics
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471
STEPHANIE MARIE PEYTON-AAS MD
Family Medicine
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-1565
DR. JESSICA DICKES M.D.
Obstetrics & Gynecology
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471
CASEY GRIMSRUD PT, DPT
Physical Therapist
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471
ERIN D SORENSON RD
Dietitian, Registered
901 4TH ST NW
WATERTOWN, SD 57201
Codington County (605) 886-8471

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 Nicholas Harms's NPI number?

The NPI number for Nicholas Harms is 1295965457. It was assigned to this individual provider in the NPPES registry on July 22, 2009.

Where is Nicholas Harms located?

Nicholas Harms practices at 901 4th St NW, Watertown, SD 57201. The listed phone number is (605) 886-8471.

What is Nicholas Harms's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Nicholas Harms enrolled in Medicare?

Yes. Nicholas Harms is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Nicholas Harms's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Harms reassigns Medicare benefits to 6 organizations: Sanford Clinic (Watertown, SD), Sanford Health Network (Clear Lake, SD), Avera Queen Of Peace (De Smet, SD), Avera Marshall (Canby, MN), County Of Murray (Slayton, MN) and 1 more organization, listed in the Medicare section above. Each 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 Nicholas Harms's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicholas Harms accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Oscar Insurance Company and Sanford Health Plan and 2 other insurers list Nicholas Harms as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nicholas Harms affiliated with any hospitals?

According to CMS data, Nicholas Harms is affiliated with Avera Mckennan Hospital & University Health Center, Platte Health Center, Avera St Benedict Health Center - Cah, Avera Gregory Hospital and Avera Queen Of Peace.

When was this NPI record last updated?

The NPPES record for Nicholas Harms was last updated on November 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.