NPPES file of Aug 9, 2026

John Calvin Jewett

Counselor · Ames, IA

John Calvin Jewett is a counselor with a practice address in Ames, Iowa, and NPI 1932367851, issued on May 28, 2008. Check the license with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1932367851
Name
John Calvin Jewett
Primary taxonomy
Counselor 101Y00000X
Practice location
420 Kellogg Ave, Ames, IA 50010
Phone
(515) 233-2250
Enumerated
May 28, 2008
Record last updated
May 28, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240112002080); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 420 Kellogg Ave

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

  1. Jessica AllenCounselor1215198528
  2. Anna Andrews, B.S., PHRAddiction (Substance Use Disorder) Counselor1710043450
  3. Arista Buckingham, B.S.Addiction (Substance Use Disorder) Counselor1295065910
  4. Paula ClattAddiction (Substance Use Disorder) Counselor1326208240
  5. Cheri DegrootCounselor1720248461
  6. Mark DejongAddiction (Substance Use Disorder) Counselor1730618810

Verify John Calvin Jewett in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this professionCheck 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
Find the Iowa 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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Bills Medicare through one group practice

  1. Albuquerque Indian Health CenterAlbuquerque, NM

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

John Calvin Jewett among 355 counselor records in Iowa

John Calvin Jewett is one of 355 counselor records with a practice address in Iowa. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 15% of them.

  • NPI issued2008 · 15% of these records are older, 76% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 12% of these records are
  • Graduated2009 · median 2016 among the 43 with a school on file
  • Record last updated2008 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101Y00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 counselor records list a practice address in Ames

They are 17 of the 1,249 NPPES records with a practice address in Ames, and 355 counselor records in Iowa.

The 8 counselor records with the nearest ZIP codes

  1. Jessica AllenAmes, IA 500101215198528
  2. Cheri DegrootAmes, IA 500101720248461
  3. Dana Diggins, LMSWAmes, IA 500101194992487
  4. Cole JohnsonAmes, IA 500101851558019
  5. Samantha Kemp CarlinAmes, IA 500101871957803
  6. Kathleen LindAmes, IA 500101093981854
  7. Robert LutterAmes, IA 500101275995037
  8. Kaitlin McCuen, BAAmes, IA 500101982008470

Common questions

What is John Calvin Jewett's NPI number?

John Calvin Jewett's National Provider Identifier (NPI) is 1932367851, issued on May 28, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Calvin Jewett located?

The NPPES record lists a practice address at 420 Kellogg Ave, Ames, IA, 50010. Phone: (515) 233-2250. Providers update this record themselves, so call before visiting.

How can I verify John Calvin Jewett's license?

Search the Iowa board that licenses this profession; the NPPES record confirms identity 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.