Kirkwood Johnston, MD
NPI 1639281066 · Rheumatology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kirkwood Johnston, MD is a Rheumatology Physician provider in Houston, TX (NPI 1639281066).
Provider details
- NPI number
- 1639281066
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- N3765 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 594 | 159 |
| Hydroxychloroquine Sulfate | 586 | 155 |
| Prednisone | 579 | 152 |
| Tizanidine Hcl | 356 | 97 |
| Leflunomide | 280 | 63 |
| Folic Acid | 213 | 63 |
| Gabapentin | 202 | 50 |
Practice location
Mailing address
Additional practice locations (3)
- 1200 Mckinney St Ste 473Houston, TX 77010-2004Phone: (713) 442-4700
- 2515 Business Center DrPearland, TX 77584-2294Phone: (713) 442-7200
- 1010 S Ponds DrWebster, TX 77598-1409Phone: (713) 442-4300
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2021-06-09
- Certified
- 2021-06-09
Frequently asked questions
- What is Kirkwood Johnston's NPI number?
- Kirkwood Johnston's National Provider Identifier (NPI) is 1639281066, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kirkwood Johnston's specialty?
- Kirkwood Johnston is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Kirkwood Johnston located?
- Kirkwood Johnston's practice location on file with NPPES is 2727 W Holcombe Blvd, Houston, TX 77025-1669.
- What is Kirkwood Johnston's phone number?
- The practice phone number listed in the NPPES registry for Kirkwood Johnston is (713) 442-0000.
- Does Kirkwood Johnston accept Medicare?
- Kirkwood Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kirkwood Johnston's NPI active?
- Yes — Kirkwood Johnston's NPI (1639281066) is active in the NPPES registry as of the last update on 2021-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.