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Edit this profileGregory R. Larson, MD is a healthcare provider in Watertown, SD specializing in family practice. Gregory trained at Sanford School of Medicine of University of South Dakota, graduating in 1990. Gregory is also listed as specializing in family medicine. Medicare claims data shows Gregory provided 4,680 services to 3,032 patients. The services billed most often include chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month, insertion of needle into vein for collection of blood sample, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1629036645.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
511 14TH AVE NE
Watertown, SD 57201
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
4,680 services · 3,032 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
570 | More than most peers in Family Practice |
| Screening mammography | Imaging | 77067 |
53 | More often than most peers in Family Practice |
| X-ray of chest, 2 views | Imaging | 71046 |
50 | More often than most peers in Family Practice |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
56 | More than most peers in Family Practice |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
46 | More often than most peers in Family Practice |
| Influenza vaccine, inactivated | Treatment | 90653 |
37 | More often than most peers in Family Practice |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
615 | More often than most peers in Family Practice |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
389 | More often than most peers in Family Practice |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
330 | More often than most peers in Family Practice |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
303 | More often than most peers in Family Practice |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Larson is a family practice in Watertown, SD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Larson is listed at 511 14Th Ave Ne, Watertown, SD 57201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (605) 886-8482. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Larson's National Provider Identifier is 1629036645. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Larson attended Sanford School of Medicine of University of South Dakota, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
Dr. Larson has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Larson performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as screening mammography and x-ray of chest, 2 views; provides treatments such as pneumococcal conjugate vaccine, 20 valent , for intramuscular use and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Larson. If this is you, claiming it is free.
Guide.md
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