Amy Riley Spencer, MD
Surgical Critical Care Physician · Grand Rapids, MI
Amy Riley Spencer, MD is a surgical critical care physician with a practice address in Grand Rapids, Michigan, and NPI 1043489842, issued on Feb 26, 2008. Check the license (Michigan 4301088136, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Amy Riley Spencer
- Credential
- MD
- Primary taxonomy
- Surgical Critical Care Physician 2086S0102X
- License number
- 4301088136 MI
Self-reported in NPPES; status is on the state search - Practice location
- 221 Michigan St NE Ste 400, Grand Rapids, MI 49503
- Phone
- (616) 486-9600
- Enumerated
- Feb 26, 2008
- Record last updated
- Mar 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140124000457); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical critical care physician records → All 88 in Michigan → Look up another NPI →
Also registered at 221 Michigan St NE Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Blumenfeld, MDSurgical Critical Care Physician1306465026
- Timothy Burton, M.D.Surgery Physician1306292859
- Cathryn Chadwick, MDSurgical Critical Care Physician1003945908
- Alistair Chapman, M.D.Surgical Critical Care Physician1225266331
- Eric Christianson, MDOrthopaedic Surgery Physician1861842759
- Todd Conlan, M.D.Orthopaedic Surgery Physician1215298732
Verify Amy Riley Spencer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301088136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average surgical critical care physician in 2024
20 Medicare Part D claims for 16 beneficiaries, against an average of 64 among the 606 providers of this specialty who prescribed in Part D.
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: $304.42
4 payments; by number, the most common kind was food and beverage; the largest payer was Vericel Corporation. The 1,092 providers of this specialty with any payment received $2,183.62 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
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Amy Riley Spencer among 88 surgical critical care physician records in Michigan
Amy Riley Spencer, MD is one of 88 surgical critical care physician records with a practice address in Michigan. 88% 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 48% of them.
- NPI issued2008 · 48% of these records are older, 47% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2006 · median 2007 among the 71 with a school on file
- Record last updated2021 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Critical Care Physician providers in Michigan
There are 88 surgical critical care physician records in Michigan.
All 88 in Michigan → Every provider in Grand Rapids → Surgical Critical Care Physician nationwide →
The 8 surgical critical care physician records with the nearest ZIP codes
- Bruce Bonnell, M.D.Grand Rapids, MI 495031699771998
- Cathryn Chadwick, MDGrand Rapids, MI 495031003945908
- Alistair Chapman, M.D.Grand Rapids, MI 495031225266331
- Matthew Dull, M.D.Grand Rapids, MI 495031346503455
- Charles Gibson, M.DGrand Rapids, MI 495031740596402
- Richard Hagelberg, M.D.Grand Rapids, MI 495031568499598
- Patricia Pentiak, MDGrand Rapids, MI 495031083877120
- James Regan, M.D.Grand Rapids, MI 495031093061905
Common questions
What is Amy Riley Spencer, MD's NPI number?
Amy Riley Spencer, MD's National Provider Identifier (NPI) is 1043489842, issued on Feb 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Amy Riley Spencer, MD located?
The NPPES record lists a practice address at 221 Michigan St NE Ste 400, Grand Rapids, MI, 49503. Phone: (616) 486-9600. Providers update this record themselves, so call before visiting.
How can I verify Amy Riley Spencer, MD's license?
NPPES lists Michigan license number 4301088136, 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 Amy Riley Spencer, MD prescribe under Medicare Part D?
In 2024, Amy Riley Spencer, MD had 20 Medicare Part D claims for 16 beneficiaries; the average among surgical critical care physician prescribers was 64. 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.