Physician Profile
Unclaimed ProfileAbout LARSON
Gregory R. Larson, MD is a healthcare provider in Watertown, SD specialising in family practice. Gregory trained at Sanford School of Medicine of University of South Dakota, graduating in 1990. Gregory is also listed as specialising in family medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Larson's specialty?
Dr. Larson is a family practice in Watertown, SD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
Where can I find Dr. Larson?
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
How do I contact Dr. Larson?
The number on file is (605) 886-8482. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Larson?
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
What is Dr. Larson's medical education?
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
How much experience does Dr. Larson have?
Dr. Larson has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Larson known for?
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
Is Dr. Larson's profile verified?
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (605) 886-8482
- Email not available
Practice Locations
511 14TH AVE NE
Watertown, SD 57201
Procedures Most Often Billed to Medicare
4,680 services · 3,032 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
570 |
| Screening mammography | Imaging | 77067 |
53 |
| X-ray of chest, 2 views | Imaging | 71046 |
50 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
56 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
46 |
| Influenza vaccine, inactivated | Treatment | 90653 |
37 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
615 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
389 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
330 |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
303 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family practices at this location 5
Same specialty, same street address — most likely the same department or group.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other family practices in Watertown 6
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Sanford School of Medicine of University of South Dakota 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Sanford School of Medicine of University of South Dakota 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in SD who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.