Doctor profile · Federal record
Dr. Ziwen Guo, M.D.
Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Green Bay, WI
- NPI 1962449108
- Accepts Medicare
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
744 S Webster Ave
Green Bay, WI 543013505
(920) 433-3653 - Mailing address
-
200 E Washington St, P O Box 8031
Appleton, WI 549115490
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- July 9, 2007
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207ZP0102X — NUCC code
- State license (1)
- Wisconsin #41382-20
- Medicaid
- WI #34268000
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1962449108. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,906
Distinct HCPCS
10
Medicare allowed
$65,019
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88341 |
Special stained specimen slides to examine tissue, each additional procedure | 798 | 116 | $27 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 383 | 255 | $35 | |
88342 |
Special stained specimen slides to examine tissue, initial procedure | 185 | 121 | $33 | |
88344 |
Special stained specimen slides to examine tissue, each multiplex procedure | 91 | 22 | $36 | |
88307 |
Pathology examination of tissue using a microscope, moderately high complexity | 88 | 50 | $76 | |
88313 |
Special stained specimen slides to examine tissue including interpretation and report | 65 | 33 | $11 | |
88360 |
Microscopic genetic analysis of tumor, manual | 63 | 22 | $40 | |
84165 |
Protein measurement, serum | 41 | 39 | $17 | |
88112 |
Cell examination of specimen, selective cellular enhancement technique | 41 | 31 | $26 | |
88173 |
Evaluation of fine needle aspirate with interpretation and report | 39 | 23 | $66 |
In context: peer comparison
Among 7 peers in Green Bay Anatomic Pathology & Clinical Pathology Physician, average services per provider: 104. This provider delivers 18× the peer median.Frequently asked questions
What is Dr. Ziwen Guo's medical specialty?
Dr. Ziwen Guo practices Anatomic Pathology & Clinical Pathology Physician in Green Bay, WI.
Where does Dr. Ziwen Guo practice?
Dr. Ziwen Guo practices at 744 S Webster Ave, Green Bay, WI 543013505. Office phone: 9204333653.
What is Dr. Ziwen Guo's NPI?
Dr. Ziwen Guo's National Provider Identifier (NPI) is 1962449108, issued by NPPES.
Does Dr. Ziwen Guo accept Medicare assignment?
Yes. Dr. Ziwen Guo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ziwen Guo commonly perform?
Top Medicare-reported procedures in 2023: Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.