Doctor profile · Federal record
Dr. Michael Klein, MD
Gastroenterology Physician · Internal Medicine Physician · Glendale, CA
- NPI 1033205273
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1818 Verdugo Blvd, #300
Glendale, CA 91208
(818) 952-5332
fax (818) 790-6830
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A40483
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033205273. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,026
Distinct HCPCS
10
Medicare allowed
$126,579
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 699 | 334 | $118 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 126 | 126 | $140 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 63 | 17 | $83 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 33 | 27 | $79 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 25 | 25 | $238 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 21 | 19 | $183 | |
99239 |
Hospital discharge day management, more than 30 minutes | 20 | 18 | $118 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 14 | 14 | $124 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 14 | 14 | $192 | |
G0402 |
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment | 11 | 11 | $157 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 105. This provider delivers 9.8× the peer median.Open Payments
Industry payments received
All-time total
$29
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Gilead Sciences, Inc. | 1 | $29.14 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,649
Patients
561
Total drug cost
$19,198
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 239 | 66 | $3,272 |
| Levothyroxine Sodium | Generic | 178 | 44 | $3,142 |
| Methylprednisolone | Generic | 166 | 115 | $1,623 |
| Azithromycin | Generic | 152 | 114 | $938 |
| Alprazolam | Generic | 136 | 39 | $967 |
| Amlodipine Besylate | Generic | 119 | 34 | $1,370 |
| Tramadol Hcl | Generic | 92 | 22 | $362 |
| Zolpidem Tartrate | Generic | 84 | 21 | $978 |
| Escitalopram Oxalate | Generic | 82 | 19 | $1,837 |
| Simvastatin | Generic | 78 | 20 | $797 |
Frequently asked questions
What is Dr. Michael Klein's medical specialty?
Dr. Michael Klein practices Gastroenterology Physician in Glendale, CA.
Where does Dr. Michael Klein practice?
Dr. Michael Klein practices at 1818 Verdugo Blvd, Glendale, CA 91208. Office phone: 8189525332.
What is Dr. Michael Klein's NPI?
Dr. Michael Klein's National Provider Identifier (NPI) is 1033205273, issued by NPPES.
What procedures does Dr. Michael Klein commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.