William Brubaker, M.D.
NPI 1336114016 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Brubaker, M.D. is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1336114016).
Provider details
- NPI number
- 1336114016
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 14717 (AZ)
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
20 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
291 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 | 119 | $123 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $86 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 40 | $125 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 30 | $18 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 16 | $14 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 219 | 64 |
| Atorvastatin Calcium | 207 | 65 |
| Rosuvastatin Calcium | 115 | 36 |
| Gabapentin | 112 | 29 |
| Lisinopril | 102 | 31 |
| Escitalopram Oxalate | 98 | 22 |
| Spironolactone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$238 across 12 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
- 2006-02-17
- Last updated
- 2016-05-31
Frequently asked questions
- What is William Brubaker's NPI number?
- William Brubaker's National Provider Identifier (NPI) is 1336114016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Brubaker's specialty?
- William Brubaker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Brubaker located?
- William Brubaker's practice location on file with NPPES is 1747 E Morten, Phoenix, AZ 85020.
- What is William Brubaker's phone number?
- The practice phone number listed in the NPPES registry for William Brubaker is (602) 589-0370.
- Does William Brubaker accept Medicare?
- William Brubaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Brubaker's NPI active?
- Yes — William Brubaker's NPI (1336114016) is active in the NPPES registry as of the last update on 2016-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.