NPPES file of Aug 9, 2026

Sagis PLLC in Houston, TX

This location of Sagis bills under NPI 1659031433, an organization record issued on Dec 21, 2021 with the primary taxonomy Clinical Medical Laboratory. It is one of 2 NPIs registered under this name and one of 2 in Houston; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1659031433
Legal name
Sagis PLLC
Entity
Type 2 · organization, a subpart
Parent organization
Sagis PLLC
Primary taxonomy
Clinical Medical Laboratory 291U00000X
Practice location
4131 DIRECTORS ROW, Houston, TX 77092
Phone
877-697-2447
Enumerated
Dec 21, 2021
Record updated
Jul 23, 2026
Authorized official
Authorized Official (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other Houston NPI

  1. Sagis, PLLC4131 DIRECTORS ROW 4131 DIRECTORS ROW · issued Aug 15, 20111548549066

20 clinicians CMS lists with Sagis in Houston

  1. Ghassan Alsaleh, MDAnatomic Pathology & Clinical Pathology Physician1750622643
  2. Nicole Bender, MDDermatopathology Physician1134515752
  3. Karin Berg, MDAnatomic Pathology Physician1740220953
  4. Christopher Chu, MDDermatopathology Physician1811377286
  5. Thomas Davis, MDDermatology Physician1073512265
  6. Emily Desantis, MDAnatomic Pathology Physician1083774681
  7. Morgan Fletcher, MDDermatology Physician1215490917
  8. Bryan Gammon, MDDermatopathology Physician1518134154
  9. Howard Gerber, MDDermatology Physician1003876285
  10. Mahmoud Goodarzi, MDAnatomic Pathology & Clinical Pathology Physician1447425954
  11. Jason Gregorio, MDAnatomic Pathology & Clinical Pathology Physician1467643643
  12. Keagan Lee, MDAnatomic Pathology & Clinical Pathology Physician1750540613
  13. Howard Martin, MDDermatopathology (Pathology) Physician1366421927
  14. Mark Matthews, MDAnatomic Pathology Physician1083694418
  15. Brian Merritt, MDAnatomic Pathology & Clinical Pathology Physician1093045247
  16. Alison Messer, MDDermatology Physician1598129975
  17. Gabriel Oaxaca, MDAnatomic Pathology & Clinical Pathology Physician1508393182
  18. Eduardo Rodriguez, MDDermatopathology Physician1508354127
  19. Paul Sagerman, MDAnatomic Pathology Physician1740384130
  20. Stephen Samuel, MDAnatomic Pathology & Clinical Pathology Physician1134454234

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 2 Sagis NPIs

Every location registered under this name, in 1 city.

See every location

Checking an organization

  1. Confirm the business with the Texas secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

What does subpart mean?

The organization registered this NPI as a subpart: a part of the organization, such as a location, that bills under its own NPI.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Houston NPI should I use?

Ask the office which NPI it bills under; all 2 Houston NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.