Mark O'Malley, D.O.
NPI 1083899686 · Surgery Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark O'Malley, D.O. is a Surgery Physician provider in Phoenix, AZ (NPI 1083899686).
Provider details
- NPI number
- 1083899686
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 3364 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
56 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) |
|---|---|---|
| Plastic Repair of Muscles at Urinary Opening Through Vagina57220 | 16 | $26 |
| Repair of Pelvic Ligaments Through Vagina57282 | 15 | $74 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 14 | $196 |
| Repair of Bulging of Rectum and Bladder Into Vaginal Wall57265 | 11 | $132 |
Typical Medicare-allowed amounts for these services range $26–$196 (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.
Practice location
Mailing address
Additional practice locations (1)
- 4757 E Greenway Rd Ste 107bPmb 189Phoenix, AZ 85032-8512Phone: (602) 862-9390Fax: (602) 862-9390
Registry dates
- Enumerated
- 2008-01-02
- Last updated
- 2018-05-03
Frequently asked questions
- What is Mark O'Malley's NPI number?
- Mark O'Malley's National Provider Identifier (NPI) is 1083899686, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark O'Malley's specialty?
- Mark O'Malley is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark O'Malley located?
- Mark O'Malley's practice location on file with NPPES is 4441 E Mcdowell Rd Ste 101, Phoenix, AZ 85008-4503.
- What is Mark O'Malley's phone number?
- The practice phone number listed in the NPPES registry for Mark O'Malley is (602) 862-9390.
- Does Mark O'Malley accept Medicare?
- Mark O'Malley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark O'Malley's NPI active?
- Yes — Mark O'Malley's NPI (1083899686) is active in the NPPES registry as of the last update on 2018-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.