Mark Willis, FNP
Family Nurse Practitioner · Pocatello, ID
Mark Willis, FNP is a family nurse practitioner with a practice address in Pocatello, Idaho, and NPI 1154838886, issued on Jan 3, 2018. Check the license (Idaho 57490, as entered in NPPES) with the Idaho board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Willis
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 57490 ID
Self-reported in NPPES; status is on the state search - Practice location
- 1350 Cedar Lake RD, Pocatello, ID 83204
- Phone
- (208) 705-2575
- Enumerated
- Jan 3, 2018
- Record last updated
- May 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (208) 203-1348
- Medicare enrollment
- Enrolled (PECOS I20180209000865); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 1,215 in Idaho → Look up another NPI →
Also registered at 1350 Cedar Lake RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara WillisAdvanced Practice Midwife1346997582
Verify Mark Willis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Idaho board licenses this profession
Search for license 57490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,364 Medicare Part D claims for 254 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 191 claims were for opioids.
Most prescribed
- Atorvastatin Calcium128 claims
- Eliquis101 claims
- Furosemide101 claims
- Gabapentin96 claims
- Levothyroxine Sodium89 claims
- Lisinopril78 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: $65.08
2 payments; by number, the most common kind was food and beverage; the largest payer was Mimedx Group, Inc. The 99,489 providers of this specialty with any payment received $650.95 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.
Bills Medicare through one group practice
- Optimum Health PLLCPocatello, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Willis among 1,215 family nurse practitioner records in Idaho
Mark Willis, FNP is one of 1,215 family nurse practitioner records with a practice address in Idaho. 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 2018, is newer than 47% of them.
- NPI issued2018 · 47% of these records are older, 47% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2019 among the 762 with a school on file
- Record last updated2021 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X 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 nurse practitioner records list a practice address in Pocatello
They are 73 of the 1,968 NPPES records with a practice address in Pocatello, and 1,215 family nurse practitioner records in Idaho.
All 1,215 in Idaho → Every provider in Pocatello → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Karla Adams, NP-CPocatello, ID 832041851791115
- Dellisa Eddington, NP-CPocatello, ID 832041356812945
- Gail George, NURSE PRACTITIONERPocatello, ID 832041659405686
- Leanne Malooly, NPPocatello, ID 832041831350172
- Bradley WalkerPocatello, ID 832041871563007
- Katherine Anderson, FNP-CPocatello, ID 832021629759667
- Scott Barlow, DNPChubbuck, ID 832021023673209
- Brian Beach, FNP-CChubbuck, ID 832021821792854
Common questions
What is Mark Willis, FNP's NPI number?
Mark Willis, FNP's National Provider Identifier (NPI) is 1154838886, issued on Jan 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mark Willis, FNP located?
The NPPES record lists a practice address at 1350 Cedar Lake RD, Pocatello, ID, 83204. Phone: (208) 705-2575. Providers update this record themselves, so call before visiting.
How can I verify Mark Willis, FNP's license?
NPPES lists Idaho license number 57490, as entered by the provider. Search the Idaho board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Willis, FNP prescribe under Medicare Part D?
In 2024, Mark Willis, FNP had 3,364 Medicare Part D claims for 254 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.