Cristina Greulich, MD
Hospitalist Physician · Royal Oak, MI
Cristina Greulich, MD is a hospitalist physician with a practice address in Royal Oak, Michigan, and NPI 1144559378, issued on Dec 17, 2009. Check the license (Michigan 4301095804, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Cristina Greulich
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 4301095804 MI
125052996 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3601 W 13 Mile RD, Royal Oak, MI 48073
- Phone
- (248) 691-8646
- Enumerated
- Dec 17, 2009
- Record last updated
- Apr 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101116000230); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 272 in Michigan → Look up another NPI →
Also registered at 3601 W 13 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cristina Greulich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301095804Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average hospitalist physician in 2024
474 Medicare Part D claims for 137 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 23 claims were for opioids.
Most prescribed
- Carvedilol37 claims
- Spironolactone25 claims
- Furosemide20 claims
- Eliquis19 claims
- Omeprazole19 claims
- Atorvastatin Calcium16 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
- Hospital Consultants PCRoyal Oak, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cristina Greulich among 272 hospitalist physician records in Michigan
Cristina Greulich, MD is one of 272 hospitalist physician records with a practice address in Michigan. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 43% of them.
- NPI issued2009 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated1995 · median 2009 among the 229 with a school on file
- Record last updated2017 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Michigan
There are 272 hospitalist physician records in Michigan.
All 272 in Michigan → Every provider in Royal Oak → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Jason Batke, M.D.Royal Oak, MI 480731982704706
- Ecaterina CretuRoyal Oak, MI 480731922213131
- William Fortin, M.D.Royal Oak, MI 480731922038983
- Gabriela Gorog, M.D.Royal Oak, MI 480731922029065
- Abdallah Haidar, MDRoyal Oak, MI 480731811334576
- Kyungmi Kim, M.D.Royal Oak, MI 480731790726537
- Chloe Kim, MDRoyal Oak, MI 480731649697517
- Alice Makris, M.D.Royal Oak, MI 480731588764328
Common questions
What is Cristina Greulich, MD's NPI number?
Cristina Greulich, MD's National Provider Identifier (NPI) is 1144559378, issued on Dec 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Cristina Greulich, MD located?
The NPPES record lists a practice address at 3601 W 13 Mile RD, Royal Oak, MI, 48073. Phone: (248) 691-8646. Providers update this record themselves, so call before visiting.
How can I verify Cristina Greulich, MD's license?
NPPES lists Michigan license number 4301095804, 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 Cristina Greulich, MD prescribe under Medicare Part D?
In 2024, Cristina Greulich, MD had 474 Medicare Part D claims for 137 beneficiaries; the average among hospitalist physician prescribers was 521. 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.