Wambui Machua, M.D.
NPI 1144541079 · Rheumatology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wambui Machua, M.D. is a Rheumatology Physician provider in Atlanta, GA (NPI 1144541079).
Provider details
- NPI number
- 1144541079
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 069892 (GA)
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
16 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
296 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 166 | $125 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 98 | $8 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 20 | $14 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $168 |
Typical Medicare-allowed amounts for these services range $8–$168 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 190 | 71 |
| Methotrexate Sodiumbrand: Methotrexate | 90 | 33 |
| Prednisone | 79 | 27 |
| Allopurinol | 56 | 25 |
| Leflunomide | 46 | 18 |
| Mycophenolate Mofetil | 38 | — |
| Methylprednisolone | 29 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,814 across 84 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
- 2010-06-15
- Last updated
- 2015-11-10
Frequently asked questions
- What is Wambui Machua's NPI number?
- Wambui Machua's National Provider Identifier (NPI) is 1144541079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wambui Machua's specialty?
- Wambui Machua is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Wambui Machua located?
- Wambui Machua's practice location on file with NPPES is 77 Collier Rd Nw, Atlanta, GA 30309-1764.
- What is Wambui Machua's phone number?
- The practice phone number listed in the NPPES registry for Wambui Machua is (404) 367-3350.
- Does Wambui Machua accept Medicare?
- Wambui Machua is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wambui Machua's NPI active?
- Yes — Wambui Machua's NPI (1144541079) is active in the NPPES registry as of the last update on 2015-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.