Siobhan P. Lynch, M.D.
Medical Oncology Physician · Missoula, MT
Siobhan P. Lynch, M.D. is a medical oncology physician with a practice address in Missoula, Montana, and NPI 1457543340, issued on Aug 14, 2007. Check the license (Montana MED-PHYS-LIC-52620, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Siobhan P. Lynch
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- MED-PHYS-LIC-52620 MT
Self-reported in NPPES; status is on the state search - Practice location
- 2837 Fort Missoula RD, Missoula, MT 59804
- Phone
- (406) 327-3911
- Enumerated
- Aug 14, 2007
- Record last updated
- May 17, 2023
- Medicaid IDs
- 1946956-05 TX
1946956-06 TX - Medicare enrollment
- Enrolled (PECOS I20170628002298); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 9 in Montana → Look up another NPI →
Also registered at 2837 Fort Missoula RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Chappell, NPFamily Nurse Practitioner1548618747
Verify Siobhan P. Lynch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license MED-PHYS-LIC-52620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% more Medicare Part D claims than the average medical oncology physician in 2024
1,219 Medicare Part D claims for 218 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 36 claims were for opioids.
Most prescribed
- Anastrozole262 claims
- Tamoxifen Citrate129 claims
- Letrozole61 claims
- Dexamethasone56 claims
- Acyclovir53 claims
- Omeprazole37 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 2 group practices
- Providence Health And Services MtMissoula, MT
- Rchp Billings - Missoula LLCMissoula, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Oncology Physician providers in Montana
There are 9 medical oncology physician records in Montana.
All 9 in Montana → Every provider in Missoula → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Michael Goodman, M.D.Ronan, MT 598641427034834
- Kenneth May, M.D., PH.D.Bozeman, MT 597151376695064
- Kara Schenk, MDBozeman, MT 597151588904346
- Justin Thomas, M.D.Bozeman, MT 597151104002195
- Jose Ness, MDKalispell, MT 599011265411359
- Bryan Martin, MDGreat Falls, MT 594051689786519
- Robert Joseph, M.D.Sidney, MT 592701750324349
- James Burke, MDBillings, MT 591011578586418
Common questions
What is Siobhan P. Lynch, M.D.'s NPI number?
Siobhan P. Lynch, M.D.'s National Provider Identifier (NPI) is 1457543340, issued on Aug 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Siobhan P. Lynch, M.D. located?
The NPPES record lists a practice address at 2837 Fort Missoula RD, Missoula, MT, 59804. Phone: (406) 327-3911. Providers update this record themselves, so call before visiting.
How can I verify Siobhan P. Lynch, M.D.'s license?
NPPES lists Montana license number MED-PHYS-LIC-52620, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Siobhan P. Lynch, M.D. prescribe under Medicare Part D?
In 2024, Siobhan P. Lynch, M.D. had 1,219 Medicare Part D claims for 218 beneficiaries; the average among medical oncology physician prescribers was 703. 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.