Mary Buns, MD
NPI 1447742960 · Emergency Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Buns, MD is a Emergency Medicine Physician provider in Phoenix, AZ (NPI 1447742960).
Provider details
- NPI number
- 1447742960
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- R76982 (AZ)
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
551 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 211 | $167 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 131 | $8 |
| Critical Care, First 30-74 Minutes99291 | 109 | $203 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 64 | $114 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 20 | $68 |
| Critical Care, Each Additional 30 Minutes99292 | 16 | $102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 24 | 24 |
| Cefdinir | 18 | 18 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 483 W Seed Farm RdSacaton, AZ 85147-5000Phone: (602) 528-1200Fax: (602) 528-1255
- 1501 N Campbell AveTucson, AZ 85724-0001Phone: (520) 626-6312
Registry dates
- Enumerated
- 2018-05-31
- Last updated
- 2026-05-07
- Certified
- 2026-05-07
Frequently asked questions
- What is Mary Buns's NPI number?
- Mary Buns's National Provider Identifier (NPI) is 1447742960, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Buns's specialty?
- Mary Buns is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Buns located?
- Mary Buns's practice location on file with NPPES is 4212 N 16th St, Phoenix, AZ 85016-5319.
- What is Mary Buns's phone number?
- The practice phone number listed in the NPPES registry for Mary Buns is (602) 263-1200.
- Does Mary Buns accept Medicare?
- Mary Buns is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Buns's NPI active?
- Yes — Mary Buns's NPI (1447742960) is active in the NPPES registry as of the last update on 2026-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.