ESTEBAN DARIO GNASS (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1427469352
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
897 PATHOLOGY in PA
Provider Addresses for ESTEBAN DARIO GNASS (MD)
1020 LOCUST ST
279 JEFFERSON ALUMNI HALL
PHILADELPHIA, PA 191076731
Phone: (215) 955-6961
Type: Location
955 VIA ZAPATA
APT 16
RIVERSIDE, CA 925070213
Phone: (951) 337-6794
Type: Mailing
PO BOX 746559
ATLANTA, GA 303746559
Phone: (281) 440-2829
Fax: (281) 440-2293
Type: Mailing
21214 NORTHWEST FWY
CYPRESS, TX 774292105
Phone: (281) 440-2829
Fax: (281) 440-2293
Type: Location
10833 LE CONTE AVE
951762 CHS AS-252A
LOS ANGELES, CA 900956731
Phone: (310) 267-8152
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2023-06-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20230602001873 | I | Pathology | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 396 | 178 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 100 | 19 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 59 | 43 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 47 | 43 | $0 |
| 88311 | Preparation of tissue for examination by removing any calcium present | 33 | 31 | $0 |
Insurance plans in this area (ZIP 19107)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | GA | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | FL | |
| P A T H O L O G Y | TX | |
| P A T H O L O G Y | TX | |
| Pathology, Hematology | TX |
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