Mary Alonzi, D.O.
Pediatrics Physician · Plymouth, MI
Mary Alonzi, D.O. is a pediatrics physician with a practice address in Plymouth, Michigan, and NPI 1235123217, issued on Sep 7, 2005. Check the license (Michigan 5101007379, as entered in NPPES) on the Michigan Board of Medicine (LARA); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Alonzi
- Credential
- D.O.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 5101007379 MI
Self-reported in NPPES; status is on the state search - Practice location
- 9365 N Haggerty RD, Plymouth, MI 48170
- Phone
- (734) 459-9260
- Enumerated
- Sep 7, 2005
- Record last updated
- Jan 14, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 2,180 in Michigan → Look up another NPI →
Verify Mary Alonzi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101007379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Alonzi among 2,180 pediatrics physician records in Michigan
Mary Alonzi, D.O. is one of 2,180 pediatrics physician records with a practice address in Michigan. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileNo · 38% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2013 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in Michigan
There are 2,180 pediatrics physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,180 in Michigan → Every provider in Plymouth → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Barbara Adams, M.D.Plymouth, MI 481701912042110
- Shama AhujaPlymouth, MI 481701598160939
- Jennifer Becker, MDPlymouth, MI 481701962441147
- Tarin Gitlin, M.D.Plymouth, MI 481701023085818
- Melissa Heinen, D.O., M.P.H.Plymouth, MI 481701669663068
- Preetha Iyengar, MDPlymouth, MI 481701467747873
- Sarah Lacy, MDPlymouth, MI 481701811023617
- Kimberly Meisenhelder, M.D.Plymouth, MI 481701336257740
Common questions
What is Mary Alonzi, D.O.'s NPI number?
Mary Alonzi, D.O.'s National Provider Identifier (NPI) is 1235123217, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary Alonzi, D.O. located?
The NPPES record lists a practice address at 9365 N Haggerty RD, Plymouth, MI, 48170. Phone: (734) 459-9260. Providers update this record themselves, so call before visiting.
How can I verify Mary Alonzi, D.O.'s license?
NPPES lists Michigan license number 5101007379, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.