Gregory Keith Terpstra, DO
Family Medicine Physician · Potosi, MO
Gregory Keith Terpstra, DO is a family medicine physician with a practice address in Potosi, Missouri, and NPI 1952399792, issued on Oct 6, 2005. Check the license (Missouri 110137, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Gregory Keith Terpstra
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 110137 MO
Self-reported in NPPES; status is on the state search - Practice location
- 612 E High St Ste 210, Potosi, MO 63664
- Phone
- (573) 438-3660
- Enumerated
- Oct 6, 2005
- Record last updated
- May 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (573) 438-1140
- Medicare enrollment
- Enrolled (PECOS I20050404000053); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1993
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Verify Gregory Keith Terpstra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 110137Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average family medicine physician in 2024
4,224 Medicare Part D claims for 228 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 27 claims were for opioids.
Most prescribed
- Atorvastatin Calcium245 claims
- Enalapril Maleate212 claims
- Metoprolol Succinate188 claims
- Amlodipine Besylate175 claims
- Levothyroxine Sodium147 claims
- Losartan Potassium136 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $77.33
4 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory Keith Terpstra among 2,991 family medicine physician records in Missouri
Gregory Keith Terpstra, DO is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1993 · median 2006 among the 1,778 with a school on file
- Record last updated2008 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family medicine physician records list a practice address in Potosi
They are 10 of the 111 NPPES records with a practice address in Potosi, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Potosi → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Timothy Bass, M.D.Potosi, MO 636641760914980
- Steven Ebers, MDPotosi, MO 636641578056800
- Tracy Fite, M.D.Potosi, MO 636641578697074
- James Hawk, MDPotosi, MO 636641144247693
- Marianne Klemm, D.O.Potosi, MO 636641386631596
- John Pearson, DOPotosi, MO 636641639215478
- Ann Schumacher, MDPotosi, MO 636641750322335
- Rustico Simpelo, MDPotosi, MO 636641477537801
Common questions
What is Gregory Keith Terpstra, DO's NPI number?
Gregory Keith Terpstra, DO's National Provider Identifier (NPI) is 1952399792, issued on Oct 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Keith Terpstra, DO located?
The NPPES record lists a practice address at 612 E High St Ste 210, Potosi, MO, 63664. Phone: (573) 438-3660. Providers update this record themselves, so call before visiting.
How can I verify Gregory Keith Terpstra, DO's license?
NPPES lists Missouri license number 110137, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Keith Terpstra, DO prescribe under Medicare Part D?
In 2024, Gregory Keith Terpstra, DO had 4,224 Medicare Part D claims for 228 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.