Doctor profile · Federal record
Dr. Crystal Marsh-Koca, D.O.
Internal Medicine Physician (CMS: Internal Medicine) · Warren, MI
- NPI 1528472123
- Accepts Medicare
- MIPS 81.2 / 100 · 2023
- 12 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
11885 E 12 Mile RD Ste 300A
Warren, MI 480933467
(586) 582-6630
fax (586) 582-6631
Credentials & registration
- NPI registered
- June 2014 — 12 yrs on file
- Profile last updated
- November 18, 2025
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #5101021322
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1528472123. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,452
Distinct HCPCS
10
Medicare allowed
$126,397
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 396 | 169 | $82 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 219 | 217 | $69 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 184 | 57 | $122 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 149 | 132 | $179 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 103 | 63 | $129 | |
93042 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 79 | 28 | $7 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 72 | 62 | $15 | |
93016 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 56 | 56 | $21 | |
93018 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 56 | 56 | $14 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 35 | $93 |
In context: peer comparison
Among 25 peers in Warren Internal Medicine Physician, average services per provider: 127. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$247
Transactions
8
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Zoll Services LLC (A/K/A Zoll LifeCor Corp) | 5 | $103.00 | |
| Amgen INC. | 1 | $79.99 | |
| Kestra Medical Technology Services, INC. | 1 | $46.81 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $16.81 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
637
Patients
277
Total drug cost
$107,131
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 125 | 52 | $2,276 |
| Metoprolol Succinate | Generic | 106 | 49 | $2,050 |
| Eliquis (Apixaban) | Brand | 78 | 32 | $98,451 |
| Amlodipine Besylate | Generic | 44 | 19 | $475 |
| Carvedilol | Generic | 36 | 16 | $541 |
| Lisinopril | Generic | 35 | 17 | $427 |
| Metoprolol Tartrate | Generic | 35 | 16 | $390 |
| Losartan Potassium | Generic | 30 | 12 | $380 |
| Rosuvastatin Calcium | Generic | 30 | 16 | $692 |
| Isosorbide Mononitrate ER (Isosorbide Mononitrate) | Brand | 27 | 16 | $409 |
Hospital affiliations
Frequently asked questions
What is Dr. Crystal Marsh-Koca's medical specialty?
Dr. Crystal Marsh-Koca practices Internal Medicine Physician in Warren, MI.
Where does Dr. Crystal Marsh-Koca practice?
Dr. Crystal Marsh-Koca practices at 11885 E 12 Mile RD Ste 300A, Warren, MI 480933467. Office phone: 5865826630.
What is Dr. Crystal Marsh-Koca's NPI?
Dr. Crystal Marsh-Koca's National Provider Identifier (NPI) is 1528472123, issued by NPPES.
Does Dr. Crystal Marsh-Koca accept Medicare assignment?
Yes. Dr. Crystal Marsh-Koca accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Crystal Marsh-Koca commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.