Stephen Mahoney, M.D.
NPI 1023496940 · Colon & Rectal Surgery Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Mahoney, M.D. is a Colon & Rectal Surgery Physician provider in Oklahoma City, OK (NPI 1023496940).
Provider details
- NPI number
- 1023496940
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 39325 (OK)
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 tenure25% of score
11 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
466 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 96 | $153 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 76 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 65 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 60 | $84 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 27 | $162 |
| Partial Removal of Large Bowel and Reattachment to Rectum Using an Endoscope44207 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 95 | 78 |
| Metronidazole | 88 | 79 |
| Neomycin Sulfate | 72 | 70 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 26 | 22 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 24 | 24 |
| Ciprofloxacin Hcl | 17 | 13 |
| Tramadol Hcl | 14 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$540 across 27 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
- 2015-05-12
- Last updated
- 2024-09-12
- Certified
- 2024-09-12
Frequently asked questions
- What is Stephen Mahoney's NPI number?
- Stephen Mahoney's National Provider Identifier (NPI) is 1023496940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Mahoney's specialty?
- Stephen Mahoney is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Mahoney located?
- Stephen Mahoney's practice location on file with NPPES is 3366 Nw Expressway Ste 800, Oklahoma City, OK 73112-4458.
- What is Stephen Mahoney's phone number?
- The practice phone number listed in the NPPES registry for Stephen Mahoney is (405) 713-9935.
- Does Stephen Mahoney accept Medicare?
- Stephen Mahoney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Mahoney's NPI active?
- Yes — Stephen Mahoney's NPI (1023496940) is active in the NPPES registry as of the last update on 2024-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.