Doctor profile · Federal record
Dr. Michael Grendon, M.D.
Internal Medicine Physician · Chicago, IL
- NPI 1922007962
- 21 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2800 N Sheridan RD, Suite 400
Chicago, IL 606576156
(773) 472-5803
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- June 13, 2022
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036061003
- Medicaid
- IL #036061003
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922007962. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,261
Distinct HCPCS
10
Medicare allowed
$190,525
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 612 | 182 | $95 | |
36415 |
Insertion of needle into vein for collection of blood sample | 382 | 183 | $7 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 341 | 79 | $78 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 337 | 166 | $133 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 223 | 55 | $83 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 75 | 66 | $15 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 61 | 26 | $124 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 50 | 44 | $137 | |
99239 |
Hospital discharge day management, more than 30 minutes | 47 | 40 | $120 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 37 | 28 | $189 |
In context: peer comparison
Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$145
Transactions
6
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 2 | $49.66 | |
| Exact Sciences Corporation | 1 | $29.64 | |
| Novo Nordisk INC | 1 | $24.86 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $20.57 | |
| Inspire Medical Systems, INC. | 1 | $19.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,548
Patients
650
Total drug cost
$167,213
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 578 | 113 | $7,693 |
| Amlodipine Besylate | Generic | 378 | 79 | $4,887 |
| Levothyroxine Sodium | Generic | 325 | 64 | $5,299 |
| Furosemide | Generic | 267 | 56 | $1,687 |
| Eliquis (Apixaban) | Brand | 261 | 30 | $120,671 |
| Metoprolol Succinate | Generic | 238 | 47 | $4,333 |
| Gabapentin | Generic | 210 | 39 | $3,093 |
| Lisinopril | Generic | 207 | 34 | $2,402 |
| Donepezil Hcl | Generic | 173 | 22 | $2,396 |
| Pantoprazole Sodium | Generic | 171 | 42 | $3,570 |
Frequently asked questions
What is Dr. Michael Grendon's medical specialty?
Dr. Michael Grendon practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Michael Grendon practice?
Dr. Michael Grendon practices at 2800 N Sheridan RD, Chicago, IL 606576156. Office phone: 7734725803.
What is Dr. Michael Grendon's NPI?
Dr. Michael Grendon's National Provider Identifier (NPI) is 1922007962, issued by NPPES.
What procedures does Dr. Michael Grendon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308). Source: CMS Medicare Physician & Other Practitioners file.