NPPES file of Aug 9, 2026

John E. Liljenquist, MD

Endocrinology, Diabetes & Metabolism Physician · Idaho Falls, ID

John E. Liljenquist, MD is an endocrinology, diabetes & metabolism physician with a practice address in Idaho Falls, Idaho, and NPI 1619977600, issued on Jul 30, 2005. Check the license (Idaho M4220, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619977600
Name
John E. Liljenquist
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
M4220 ID
Self-reported in NPPES; status is on the state search
Practice location
2220 E 25TH St, Idaho Falls, ID 83404
Phone
(208) 522-2996
Enumerated
Jul 30, 2005
Record last updated
Jun 2, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(208) 523-6025
Medicaid ID
002530600 ID
Medicare enrollment
Enrolled (PECOS I20100120000865); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1967
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2220 E 25TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jean HalfordMetabolic Nutrition Registered Dietitian1669405932
  2. Ronda HarstonRegistered Dietitian1295768562
  3. Brittany McIntoshRegistered Dietitian1518075670
  4. Barbara MoultonMetabolic Nutrition Registered Dietitian1275552978
  5. Jace Nebeker, DNP, APRN,FNP-CFamily Medicine Physician1790458768
  6. Paula Sanderlin, FNPFamily Nurse Practitioner1871113969

Verify John E. Liljenquist in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIdaho Board of Medicine
    Search for license M4220
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Idaho license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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82% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

467 Medicare Part D claims for 76 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 11 claims were for opioids.

  1. John Liljenquist467
  2. Specialty average2,630

Most prescribed

  1. Mounjaro46 claims
  2. Levothyroxine Sodium29 claims
  3. Metformin Hcl Er25 claims
  4. Atorvastatin Calcium23 claims
  5. Lantus Solostar19 claims
  6. Potassium Chloride16 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: $51.93

3 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Liljenquist$51.93
  2. Specialty average$5,742.15

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

  1. Rocky Mountain Diabetes And Osteoporosis Center PAIdaho Falls, ID

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John E. Liljenquist among 22 endocrinology, diabetes & metabolism physician records in Idaho

John E. Liljenquist, MD is one of 22 endocrinology, diabetes & metabolism physician records with a practice address in Idaho. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 77% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1967 · median 2006 among the 15 with a school on file
  • Record last updated2010 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Idaho

There are 22 endocrinology, diabetes & metabolism physician records in Idaho.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. David Liljenquist, MDIdaho Falls, ID 834041932109931
  2. Carl Vance, MDIdaho Falls, ID 834041437159423
  3. Peter Curran, MDKetchum, ID 833401013958222
  4. Jason Bell, D.O.Blackfoot, ID 832211033376983
  5. Angelo Capricchione, MDBlackfoot, ID 832211669559050
  6. Katy Connley, FNP-CEagle, ID 836161679980551
  7. Robert Ennis, MDMeridian, ID 836421366647729
  8. Lynn Ge-Zerbe, M.D.Meridian, ID 836421003881970

Common questions

What is John E. Liljenquist, MD's NPI number?

John E. Liljenquist, MD's National Provider Identifier (NPI) is 1619977600, issued on Jul 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John E. Liljenquist, MD located?

The NPPES record lists a practice address at 2220 E 25TH St, Idaho Falls, ID, 83404. Phone: (208) 522-2996. Providers update this record themselves, so call before visiting.

How can I verify John E. Liljenquist, MD's license?

NPPES lists Idaho license number M4220, 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 John E. Liljenquist, MD prescribe under Medicare Part D?

In 2024, John E. Liljenquist, MD had 467 Medicare Part D claims for 76 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.