Doctor profile · Federal record
Dr. David Zack, D.O.
Gastroenterology Physician (CMS: Gastroenterology) · Toledo, OH
- NPI 1407955008
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4841 Monroe St, Suite 110
Toledo, OH 436234385
(419) 471-1317
fax (419) 471-1316
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Ohio #34006071
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1407955008. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
666
Distinct HCPCS
10
Medicare allowed
$89,854
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 121 | 93 | $122 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 106 | 106 | $240 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 105 | 88 | $85 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 85 | 82 | $95 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 50 | 50 | $109 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 49 | 49 | $169 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 29 | 28 | $91 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $159 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 27 | 27 | $176 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 20 | 20 | $139 |
In context: peer comparison
Among 11 peers in Toledo Gastroenterology Physician, average services per provider: 55. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$2,069
Transactions
123
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 44 | $576.90 | |
| Takeda Pharmaceuticals U.S.A., INC. | 31 | $383.50 | |
| Janssen Biotech, INC. | 14 | $335.06 | |
| Lilly USA, LLC | 6 | $147.75 | |
| Regeneron Healthcare Solutions, INC. | 7 | $128.26 | |
| Gilead Sciences, INC. | 5 | $81.05 | |
| Pfizer INC. | 3 | $65.27 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 3 | $59.80 | |
| Intercept Pharmaceuticals, INC. | 2 | $53.69 | |
| CapsoVision, INC. | 2 | $49.39 | |
| Celltrion USA INC. | 2 | $44.73 | |
| Enterra Medical, INC. | 1 | $38.45 | |
| Celgene Corporation | 1 | $34.12 | |
| Sandoz INC. | 1 | $21.60 | |
| Phathom Pharmaceuticals, INC. | 1 | $18.47 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,096
Patients
398
Total drug cost
$292,268
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 349 | 87 | $4,668 |
| Famotidine | Generic | 111 | 27 | $1,168 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 105 | 102 | $1,823 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 85 | 84 | $6,487 |
| Omeprazole | Generic | 80 | 23 | $949 |
| Dicyclomine Hcl | Generic | 65 | 15 | $979 |
| Xifaxan (Rifaximin) | Brand | 49 | 0 | $157,545 |
| Lactulose | Generic | 48 | 35 | $745 |
| Linzess (Linaclotide) | Brand | 48 | 0 | $32,027 |
| Metoclopramide Hcl | Generic | 46 | 0 | $868 |
Hospital affiliations
Frequently asked questions
What is Dr. David Zack's medical specialty?
Dr. David Zack practices Gastroenterology Physician in Toledo, OH.
Where does Dr. David Zack practice?
Dr. David Zack practices at 4841 Monroe St, Toledo, OH 436234385. Office phone: 4194711317.
What is Dr. David Zack's NPI?
Dr. David Zack's National Provider Identifier (NPI) is 1407955008, issued by NPPES.
Does Dr. David Zack accept Medicare assignment?
Yes. Dr. David Zack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Zack commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.