Dianne Wollaston, M.D.
NPI 1427161637 · Rheumatology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dianne Wollaston, M.D. is a Rheumatology Physician provider in Houston, TX (NPI 1427161637).
Provider details
- NPI number
- 1427161637
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- J6819 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,415 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 350 | $16 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 337 | $67 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 257 | $87 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 193 | $121 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 128 | $122 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 302 | 83 |
| Hydroxychloroquine Sulfate | 261 | 74 |
| Leflunomide | 157 | 48 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 119 | 15 |
| Methylprednisolone | 114 | 59 |
| Prednisone | 98 | 30 |
| Sulfasalazine | 90 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,104 across 41 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-15
- Last updated
- 2014-12-19
Frequently asked questions
- What is Dianne Wollaston's NPI number?
- Dianne Wollaston's National Provider Identifier (NPI) is 1427161637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dianne Wollaston's specialty?
- Dianne Wollaston is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Dianne Wollaston located?
- Dianne Wollaston's practice location on file with NPPES is 902 Frostwood, Houston, TX 77024-2426.
- What is Dianne Wollaston's phone number?
- The practice phone number listed in the NPPES registry for Dianne Wollaston is (713) 266-1946.
- Does Dianne Wollaston accept Medicare?
- Dianne Wollaston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dianne Wollaston's NPI active?
- Yes — Dianne Wollaston's NPI (1427161637) is active in the NPPES registry as of the last update on 2014-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.