Rachel Anne Warby, D.O.
Emergency Medicine Physician · Grand Blanc, MI
Rachel Anne Warby, D.O. is an emergency medicine physician with a practice address in Grand Blanc, Michigan, and NPI 1407173081, issued on Apr 22, 2010. Check the license (Michigan 5101018594, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Rachel Anne Warby
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 5101018594 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1 Genesys Pkwy, Grand Blanc, MI 48439
- Phone
- (810) 606-5980
- Enumerated
- Apr 22, 2010
- Record last updated
- Apr 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (810) 606-5990
- Medicare enrollment
- Enrolled (PECOS I20121023000389); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2010
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1 Genesys Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary AdekalePsychologist1457838005
- Ceilidh AhearnInternal Medicine Physician1619814431
- Maruf Ahmed, DOInternal Medicine Physician1407792476
- Muhammad Ahmed, MDFamily Medicine Physician1710800578
- Sana Ahmed, MDFamily Medicine Physician1871974592
Verify Rachel Anne Warby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101018594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average emergency medicine physician in 2024
29 Medicare Part D claims for 25 beneficiaries, against an average of 226 among the 54,106 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.
Bills Medicare through 2 group practices
- Emergency Medicine Physicians OF Genesee County PLLCGrand Blanc, MI
- Observation Medicine Group PLLCGrand Blanc, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rachel Anne Warby among 3,083 emergency medicine physician records in Michigan
Rachel Anne Warby, 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 2010, is newer than 42% of them.
- NPI issued2010 · 42% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2013 among the 1,931 with a school on file
- Record last updated2013 · 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).
82 emergency medicine physician records list a practice address in Grand Blanc
They are 82 of the 1,735 NPPES records with a practice address in Grand Blanc, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Grand Blanc → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Michael Chapman, D.O.Grand Blanc, MI 484391457557647
- Bradley Chappell, DO, MHAGrand Blanc, MI 484391144426479
- Bryan Eadie, DOGrand Blanc, MI 484391720247299
- Scott Greib, MDGrand Blanc, MI 484391154304855
- Amy KaluzaGrand Blanc, MI 484391437355229
- Kurt Keogh, MDGrand Blanc, MI 484391528041407
- Virginia Labond, MDGrand Blanc, MI 484391962485920
- Ananda Pandurangadu, M.D.Grand Blanc, MI 484391891963641
Common questions
What is Rachel Anne Warby, D.O.'s NPI number?
Rachel Anne Warby, D.O.'s National Provider Identifier (NPI) is 1407173081, issued on Apr 22, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Rachel Anne Warby, D.O. located?
The NPPES record lists a practice address at 1 Genesys Pkwy, Grand Blanc, MI, 48439. Phone: (810) 606-5980. Providers update this record themselves, so call before visiting.
How can I verify Rachel Anne Warby, D.O.'s license?
NPPES lists Michigan license number 5101018594, 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 Rachel Anne Warby, D.O. prescribe under Medicare Part D?
In 2024, Rachel Anne Warby, D.O. had 29 Medicare Part D claims for 25 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.