Doctor profile · Federal record
Dr. Cristina Greulich, MD
Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Royal Oak, MI
- NPI 1144559378
- Accepts Medicare
- 31 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3601 W 13 Mile RD
Royal Oak, MI 480736712
(248) 691-8646
Credentials & registration
- NPI registered
- December 2009 — 17 yrs on file
- Profile last updated
- April 7, 2017
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State licenses (2)
- Michigan #4301095804 · Illinois #125052996
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144559378. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
829
Distinct HCPCS
7
Medicare allowed
$85,842
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 380 | 107 | $81 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 155 | 82 | $121 | |
99239 |
Hospital discharge day management, more than 30 minutes | 100 | 90 | $117 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 84 | 77 | $177 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 47 | 46 | $133 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 47 | 27 | $51 | |
99238 |
Hospital discharge day management, 30 minutes or less | 16 | 16 | $82 |
In context: peer comparison
Among 8 peers in Royal Oak Hospitalist Physician, average services per provider: 120. This provider delivers 6.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
125
Patients
12
Total drug cost
$1,735
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 20 | 0 | $117 |
| Mirtazapine | Generic | 17 | 0 | $578 |
| Losartan Potassium | Generic | 14 | 0 | $160 |
| Prednisone | Generic | 14 | 12 | $62 |
| Carvedilol | Generic | 13 | 0 | $148 |
| Bumetanide | Generic | 12 | 0 | $359 |
| Omeprazole | Generic | 12 | 0 | $97 |
| Spironolactone | Generic | 12 | 0 | $124 |
| Amlodipine Besylate | Generic | 11 | 0 | $89 |
Frequently asked questions
What is Dr. Cristina Greulich's medical specialty?
Dr. Cristina Greulich practices Hospitalist Physician in Royal Oak, MI.
Where does Dr. Cristina Greulich practice?
Dr. Cristina Greulich practices at 3601 W 13 Mile RD, Royal Oak, MI 480736712. Office phone: 2486918646.
What is Dr. Cristina Greulich's NPI?
Dr. Cristina Greulich's National Provider Identifier (NPI) is 1144559378, issued by NPPES.
Does Dr. Cristina Greulich accept Medicare assignment?
Yes. Dr. Cristina Greulich accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cristina Greulich commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.