Doctor profile · Federal record
Dr. John Zazaian, DO
Internal Medicine Physician (CMS: Internal Medicine) · Waterford, MI
- NPI 1871581934
- Accepts Medicare
- 44 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1012 W Huron St
Waterford, MI 483283730
(248) 681-1880
fax (248) 681-3698
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- August 28, 2020
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #5101008304
- Medicaid
- MI #165392311
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1871581934. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,446
Distinct HCPCS
10
Medicare allowed
$205,635
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 728 | 263 | $82 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 339 | 147 | $123 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 328 | 111 | $130 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 195 | 81 | $52 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 192 | 165 | $8 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 146 | 140 | $179 | |
36415 |
Insertion of needle into vein for collection of blood sample | 117 | 75 | $8 | |
99239 |
Hospital discharge day management, more than 30 minutes | 73 | 69 | $117 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 41 | 38 | $15 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 41 | 41 | $19 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 91. This provider delivers 27× the peer median.Open Payments
Industry payments received
All-time total
$121
Transactions
7
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 2 | $31.85 | |
| AstraZeneca Pharmaceuticals LP | 2 | $29.35 | |
| Novo Nordisk Inc | 1 | $24.43 | |
| GlaxoSmithKline, LLC. | 1 | $17.54 | |
| PFIZER INC. | 1 | $17.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,065
Patients
720
Total drug cost
$108,250
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 295 | 105 | $4,277 |
| Amlodipine Besylate | Generic | 270 | 95 | $2,204 |
| Lisinopril | Generic | 181 | 70 | $1,894 |
| Metoprolol Succinate | Generic | 149 | 57 | $3,452 |
| Losartan Potassium | Generic | 138 | 49 | $2,651 |
| Gabapentin | Generic | 135 | 32 | $1,911 |
| Metformin Hcl | Generic | 124 | 48 | $1,101 |
| Levothyroxine Sodium | Generic | 122 | 45 | $2,243 |
| Pantoprazole Sodium | Generic | 109 | 45 | $1,979 |
| Eliquis (Apixaban) | Brand | 99 | 26 | $77,212 |
Hospital affiliations
Frequently asked questions
What is Dr. John Zazaian's medical specialty?
Dr. John Zazaian practices Internal Medicine Physician in Waterford, MI.
Where does Dr. John Zazaian practice?
Dr. John Zazaian practices at 1012 W Huron St, Waterford, MI 483283730. Office phone: 2486811880.
What is Dr. John Zazaian's NPI?
Dr. John Zazaian's National Provider Identifier (NPI) is 1871581934, issued by NPPES.
Does Dr. John Zazaian accept Medicare assignment?
Yes. Dr. John Zazaian accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Zazaian 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); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.