Crystal Ann Zilo, M.D.
Obstetrics & Gynecology Physician · Grand Rapids, MI
Crystal Ann Zilo, M.D. is an obstetrics & gynecology physician with a practice address in Grand Rapids, Michigan, and NPI 1134483340, issued on Jul 2, 2012. Check the license (Michigan 207V00000X (OB/GYN), as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Crystal Ann Zilo
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 207V00000X (OB/GYN) MI
Self-reported in NPPES; status is on the state search - Practice location
- 245 Cherry St SE, Grand Rapids, MI 49503
- Phone
- (616) 685-8750
- Enumerated
- Jul 2, 2012
- Record last updated
- Jul 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (616) 685-8002
- Medicare enrollment
- Enrolled (PECOS I20140519001682); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,776 in Michigan → Look up another NPI →
Also registered at 245 Cherry St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Crystal Ann Zilo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 207V00000X (OB/GYN)Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
112 Medicare Part D claims for 42 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol39 claims
- Clobetasol Propionate28 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.
Bills Medicare through one group practice
- Advantage Health/saint Mary's Medical GroupGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Crystal Ann Zilo among 1,776 obstetrics & gynecology physician records in Michigan
Crystal Ann Zilo, M.D. is one of 1,776 obstetrics & gynecology physician records with a practice address in Michigan. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 61% of them.
- NPI issued2012 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2010 · median 2007 among the 1,003 with a school on file
- Record last updated2014 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
183 obstetrics & gynecology physician records list a practice address in Grand Rapids
They are 183 of the 18,005 NPPES records with a practice address in Grand Rapids, and 1,776 obstetrics & gynecology physician records in Michigan.
All 1,776 in Michigan → Every provider in Grand Rapids → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Michelle Backus Colwell, M.D.Grand Rapids, MI 495031124011531
- Adam Blickley, MDGrand Rapids, MI 495031679554679
- Jane Cottingham, MDGrand Rapids, MI 495031467442053
- Jeffrey Frank, MDGrand Rapids, MI 495031871584466
- Robyn Hubbard, MDGrand Rapids, MI 495031063403657
- Michelle Klyn, MDGrand Rapids, MI 495031235133992
- David Kreuze, M.D.Grand Rapids, MI 495031184614836
- Calvin Leazenby, M.DGrand Rapids, MI 495031588668248
Common questions
What is Crystal Ann Zilo, M.D.'s NPI number?
Crystal Ann Zilo, M.D.'s National Provider Identifier (NPI) is 1134483340, issued on Jul 2, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Crystal Ann Zilo, M.D. located?
The NPPES record lists a practice address at 245 Cherry St SE, Grand Rapids, MI, 49503. Phone: (616) 685-8750. Providers update this record themselves, so call before visiting.
How can I verify Crystal Ann Zilo, M.D.'s license?
NPPES lists Michigan license number 207V00000X (OB/GYN), 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 Crystal Ann Zilo, M.D. prescribe under Medicare Part D?
In 2024, Crystal Ann Zilo, M.D. had 112 Medicare Part D claims for 42 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.