P Praxis·MD
● Active Type 1 · Individual

DR. Stephen D.C. Mac, M.D.

Pediatrics·Houston, TX· NPI 1912138819 · Enumerated 2009 · 16 years on NPI
Mac is 1 of 86 pediatrics providers in Houston and 1 of 223 in Texas.
NPI age
16 years
Enumerated 2009-07-27
Primary specialty
Pediatrics
Plus 3 subspecialties
Licensed in
TX, CA, LA
3 states
Status
Active
No deactivations on record
Last NPPES update
2024-07-16
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 223 active pediatrics providers in Texas.

NPI age
16 years
≈ at median (16 yr)
State licenses
3 states
Top 60% — 39% of peers are multi-state
Subspecialties
1
In the 75% of peers with subspecialties

NPI lifetime · 2009 → 2026

2009-07Enumerated in NPPES
2009 2026

Where they practice

Practice location
18200 Katy Fwy
Houston, TX 770941285
📞 9362675000
Mailing address
200 Henry Clay Ave
New Orleans, LA 701185720
📞 5048999511

Additional practice locations

4 secondary locations on file with NPPES.

Location 2
200 Henry Clay Ave
New Orleans, LA 701185720
📞 5048999511
Location 3
25500 Medical Center Dr
Murrieta, CA 925625965
📞 9516966000
Location 4
3020 Childrens Way
San Diego, CA 921234223
📞 8589668800
Location 5
4015 22nd Pl
Lubbock, TX 794101119
📞 8067250030fax 8067236532

Specialties

  • Pediatrics Primary
    A pediatrician who has special qualifications to manage emergencies in infants and children.
    TX license #U9752 taxonomy 2080P0204X
  • Emergency Medicine
    Pediatric Emergency Medicine is a clinical subspecialty that focuses on the care of the acutely ill or injured child in the setting of an emergency department.
    CA license #C192895TX license #U9752LA license #303238 taxonomy 207PP0204X

Practice context

Part of a multi-provider practice. 94 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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