James P. Chiavaras, D.O.
Emergency Medicine Physician · Grand Rapids, MI
James P. Chiavaras, D.O. is an emergency medicine physician with a practice address in Grand Rapids, Michigan, and NPI 1972576783, issued on Feb 10, 2006. Check the license (Michigan JC012452, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- James P. Chiavaras
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- JC012452 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5900 Byron Center SW, Grand Rapids, MI 49519
- Phone
- (616) 252-7123
- Enumerated
- Feb 10, 2006
- Record last updated
- Aug 31, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 3396100 MI
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Verify James P. Chiavaras in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license JC012452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 54% of the cost of the top drugs
3,550 Medicare Part D claims for 318 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 126 claims were for opioids.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Arexvy182 claims
- Twinrix179 claims
- Atorvastatin Calcium176 claims
- Levothyroxine Sodium133 claims
- Gabapentin122 claims
- Duloxetine Hcl112 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.
James P. Chiavaras among 3,083 emergency medicine physician records in Michigan
James P. Chiavaras, D.O. is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 77% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2009 · 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 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
192 emergency medicine physician records list a practice address in Grand Rapids
They are 192 of the 18,005 NPPES records with a practice address in Grand Rapids, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Grand Rapids → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- David Berg, D.O.Wyoming, MI 495191457309767
- John Bradley, D.O.Wyoming, MI 495191033183066
- Paul Dwyer, MDWyoming, MI 495191356315345
- Allison Edberg, D.O.Wyoming, MI 495191962622696
- John Epema, D.O.Wyoming, MI 495191235391467
- Patricia Guntern, DOWyoming, MI 495191427162072
- Daniel Hearld, D.O.Wyoming, MI 495191033183900
- Daniel Mann, D.O.Wyoming, MI 495191922284116
Common questions
What is James P. Chiavaras, D.O.'s NPI number?
James P. Chiavaras, D.O.'s National Provider Identifier (NPI) is 1972576783, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James P. Chiavaras, D.O. located?
The NPPES record lists a practice address at 5900 Byron Center SW, Grand Rapids, MI, 49519. Phone: (616) 252-7123. Providers update this record themselves, so call before visiting.
How can I verify James P. Chiavaras, D.O.'s license?
NPPES lists Michigan license number JC012452, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James P. Chiavaras, D.O. prescribe under Medicare Part D?
In 2024, James P. Chiavaras, D.O. had 3,550 Medicare Part D claims for 318 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.