Mark S. Grajcar, DO
Family Medicine Physician · Meridian, ID
Mark S. Grajcar, DO is a family medicine physician with a practice address in Meridian, Idaho, and NPI 1669416137, issued on Jun 15, 2006. Check the license (Idaho O127, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark S. Grajcar
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- O127 ID
Self-reported in NPPES; status is on the state search - Practice location
- 2640 S Eagle RD, Meridian, ID 83642
- Phone
- (208) 884-0835
- Enumerated
- Jun 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (208) 367-8135
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,316 in Idaho → Look up another NPI →
Also registered at 2640 S Eagle RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yelena Frunchak, M.S., F.N.P.Family Nurse Practitioner1265710776
- Erin Love McDermott, PA-CFamily Medicine Physician1790269389
- Kathleen Nielsen, PAPhysician Assistant1336196757
Verify Mark S. Grajcar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license O127Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average family medicine physician in 2024
1,217 Medicare Part D claims for 101 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Levothyroxine Sodium74 claims
- Rosuvastatin Calcium60 claims
- Atorvastatin Calcium50 claims
- Losartan Potassium37 claims
- Omeprazole37 claims
- Duloxetine Hcl30 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: $696.62
32 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
Mark S. Grajcar among 1,316 family medicine physician records in Idaho
Mark S. Grajcar, DO is one of 1,316 family medicine physician records with a practice address in Idaho. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 57% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2007 · 49% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 family medicine physician records list a practice address in Meridian
They are 73 of the 2,980 NPPES records with a practice address in Meridian, and 1,316 family medicine physician records in Idaho.
All 1,316 in Idaho → Every provider in Meridian → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Brenda Adams, MDMeridian, ID 836421205887288
- Sam Battaglia, MDMeridian, ID 836421255383055
- William Crump, MDMeridian, ID 836421740232529
- Elaine Davidson, M.D.Meridian, ID 836421093705022
- Fred Fender, M.D.Meridian, ID 836421558300491
- D Hall, DOMeridian, ID 836421780671347
- Robert Holland, MDMeridian, ID 836421356348015
- Andrew Holtz, DOMeridian, ID 836421568466167
Common questions
What is Mark S. Grajcar, DO's NPI number?
Mark S. Grajcar, DO's National Provider Identifier (NPI) is 1669416137, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Grajcar, DO located?
The NPPES record lists a practice address at 2640 S Eagle RD, Meridian, ID, 83642. Phone: (208) 884-0835. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Grajcar, DO's license?
NPPES lists Idaho license number O127, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark S. Grajcar, DO prescribe under Medicare Part D?
In 2024, Mark S. Grajcar, DO had 1,217 Medicare Part D claims for 101 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.