Cassandra Evelyn Lopez, MD
Family Medicine Physician · Lewistown, MT
Cassandra Evelyn Lopez, MD is a family medicine physician with a practice address in Lewistown, Montana, and NPI 1669859971, issued on May 6, 2015. Check the license (Montana MED-PHYS-LIC-78955, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Cassandra Evelyn Lopez
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MED-PHYS-LIC-78955 MT
Self-reported in NPPES; status is on the state search - Practice location
- 408 Wendell Ave, Lewistown, MT 59457
- Phone
- (406) 535-1502
- Enumerated
- May 6, 2015
- Record last updated
- Sep 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20231227002446); accepts Medicare assignment
- Medical or professional school
- University Of New Mexico School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 775 in Montana → Look up another NPI →
Also registered at 408 Wendell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danielle Affolder, COTAOccupational Therapy Assistant1679978019
- Laura Anderson, DPTPhysical Therapist1952702144
- Amie Baguer, FNPFamily Nurse Practitioner1144198763
- Laura Bennett, MDFamily Medicine Physician1639120546
- Justin BerklovichPhysical Therapy Assistant1609439041
- Shaun Biddle, PT, DPTPhysical Therapist1831477165
Verify Cassandra Evelyn Lopez 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-78955Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
266 Medicare Part D claims for 135 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Eliquis14 claims
- Atorvastatin Calcium12 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
- Utah Regional Hospitalists LLCDraper, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassandra Evelyn Lopez among 775 family medicine physician records in Montana
Cassandra Evelyn Lopez, MD is one of 775 family medicine physician records with a practice address in Montana. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.
- NPI issued2015 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2015 · median 2007 among the 464 with a school on file
- Record last updated2019 · 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family medicine physician records list a practice address in Lewistown
They are 13 of the 175 NPPES records with a practice address in Lewistown, and 775 family medicine physician records in Montana.
All 775 in Montana → Every provider in Lewistown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Laura Bennett, MDLewistown, MT 594571639120546
- Annette Comes, MDLewistown, MT 594571346247087
- Jacob Forke, M.D.Lewistown, MT 594571902127756
- Danny Harbour, M.D.Lewistown, MT 594571235248584
- Melanie Hardy, DOLewistown, MT 594571891941662
- Cathy Holmes, D.O.Lewistown, MT 594571164413969
- William Holmes, D.O.Lewistown, MT 594571053302794
- Chelsea Rambo, DOLewistown, MT 594571255913125
Common questions
What is Cassandra Evelyn Lopez, MD's NPI number?
Cassandra Evelyn Lopez, MD's National Provider Identifier (NPI) is 1669859971, issued on May 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Evelyn Lopez, MD located?
The NPPES record lists a practice address at 408 Wendell Ave, Lewistown, MT, 59457. Phone: (406) 535-1502. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Evelyn Lopez, MD's license?
NPPES lists Montana license number MED-PHYS-LIC-78955, 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 Cassandra Evelyn Lopez, MD prescribe under Medicare Part D?
In 2024, Cassandra Evelyn Lopez, MD had 266 Medicare Part D claims for 135 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.