Robert W. Chalmers, M.D.
Obstetrics & Gynecology Physician · Nampa, ID
Robert W. Chalmers, M.D. is an obstetrics & gynecology physician with a practice address in Nampa, Idaho, and NPI 1114973708, issued on May 25, 2006. Check the license (Idaho 5771332, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert W. Chalmers
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 5771332 ID
MEDS5236 AK
C54654 CA
6626848-1205 UT
MD00040462 WA
Self-reported in NPPES; status is on the state search - Practice location
- 9850 W St Lukes Dr, Nampa, ID 83687
- Phone
- (208) 381-2267
- Enumerated
- May 25, 2006
- Record last updated
- Oct 22, 2025
- Fax
- (208) 381-4314
- Medicaid ID
- 1014444 AK
- Medicare enrollment
- Enrolled (PECOS I20040630000136); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 191 in Idaho → Look up another NPI →
Also registered at 9850 W St Lukes Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Aaron, PT, DPT, LAT, ATCPhysical Therapist1730712159
- Patricia Aggers, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1093973455
- Uzochukwu Amadi, MDInternal Medicine Physician1689961088
- Travis Avery, PA-CPhysician Assistant1467962548
- Blythe Bartos, M.D.Hospitalist Physician1881889434
- Allison Beaman, APRN, FNP-CFamily Nurse Practitioner1972264075
Verify Robert W. Chalmers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license 5771332Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
16 Medicare Part D claims for 15 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 94% of 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.
Bills Medicare through one group practice
- Tanana Valley Clinic LLCFairbanks, AK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert W. Chalmers among 191 obstetrics & gynecology physician records in Idaho
Robert W. Chalmers, M.D. is one of 191 obstetrics & gynecology 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 8% of them.
- NPI issued2006 · 8% of these records are older, 51% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1999 · median 2007 among the 128 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 obstetrics & gynecology physician records list a practice address in Nampa
They are 22 of the 2,005 NPPES records with a practice address in Nampa, and 191 obstetrics & gynecology physician records in Idaho.
All 191 in Idaho → Every provider in Nampa → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Brennan AndersonNampa, ID 836871609222355
- Callie Blair, D.O.Nampa, ID 836871932444239
- Justin Bruner, D.O.Nampa, ID 836871346580842
- Philip Dayley, DONampa, ID 836871306377361
- Guillermo Guzman Trevino, MDNampa, ID 836871881828010
- Megan KasperNampa, ID 836871285757104
- Aileen King, M.D.Nampa, ID 836871689623043
- John Mercer, MDNampa, ID 836871205988540
Common questions
What is Robert W. Chalmers, M.D.'s NPI number?
Robert W. Chalmers, M.D.'s National Provider Identifier (NPI) is 1114973708, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert W. Chalmers, M.D. located?
The NPPES record lists a practice address at 9850 W St Lukes Dr, Nampa, ID, 83687. Phone: (208) 381-2267. Providers update this record themselves, so call before visiting.
How can I verify Robert W. Chalmers, M.D.'s license?
NPPES lists Idaho license number 5771332, 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 Robert W. Chalmers, M.D. prescribe under Medicare Part D?
In 2024, Robert W. Chalmers, M.D. had 16 Medicare Part D claims for 15 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.