NPI age
19 years
Enumerated 2007-05-29
● Active
Type 1 · Individual
Marilyn Gennedy Shook, PA
Shook is 1 of 494 physician assistant providers in Houston and 1 of 1890 in Texas.
Primary specialty
Physician Assistant
Plus 2 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-04-22
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1890 active physician assistant providers in Texas.
NPI age
19 years
↑ 8 yr above median (11 yr)
State licenses
1 state
5% of peers hold multiple states
Subspecialties
2
In the 32% of peers with subspecialties
NPI lifetime · 2007 → 2026
2007-05Enumerated in NPPES
2007
2026
Where they practice
Practice location
18885 Katy Fwy Fl 2
Houston, TX 770941103
Mailing address
Po Box 207
Houston, TX 770010207
Additional practice locations
1 secondary location on file with NPPES.
Location 2
2600 North Loop W Ste 100
Houston, TX 770928915
Specialties
-
Physician Assistant PrimaryDefinition to come...
-
Physician AssistantA physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally...
-
Physician AssistantDefinition to come...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 8J7704 | MEDICARE INDIVIDUAL PTAN |
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
Recently enumerated nearby: 7 new physician assistant providers have been added in Houston in the last 180 days.
See all →
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.