Steven O'Brien, MD
NPI 1841853751 · Internal Medicine Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven O'Brien, MD is a Internal Medicine Physician provider in Oklahoma City, OK (NPI 1841853751).
Provider details
- NPI number
- 1841853751
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 39315 (OK)
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
7 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
836 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 253 | $111 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 203 | $118 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 174 | $15 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 59 | $107 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $84 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 140 | 56 |
| Levothyroxine Sodium | 106 | 36 |
| Omeprazole | 91 | 27 |
| Amlodipine Besylate | 85 | 32 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 81 | 29 |
| Furosemide | 73 | 26 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$450 across 25 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
- 2019-04-16
- Last updated
- 2023-01-12
- Certified
- 2023-01-12
Frequently asked questions
- What is Steven O'Brien's NPI number?
- Steven O'Brien's National Provider Identifier (NPI) is 1841853751, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven O'Brien's specialty?
- Steven O'Brien is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven O'Brien located?
- Steven O'Brien's practice location on file with NPPES is 3400 Nw Expressway Ste 500, Oklahoma City, OK 73112-4492.
- What is Steven O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Steven O'Brien is (405) 945-4589.
- Does Steven O'Brien accept Medicare?
- Steven O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven O'Brien's NPI active?
- Yes — Steven O'Brien's NPI (1841853751) is active in the NPPES registry as of the last update on 2023-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.