Julia Irwin, M.D.
NPI 1306951124 · Psychiatry Physician · Norman, OK
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julia Irwin, M.D. is a Psychiatry Physician provider in Norman, OK (NPI 1306951124).
Provider details
- NPI number
- 1306951124
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 20319 (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
19 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
847 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 822 | $78 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 25 | $177 |
Typical Medicare-allowed amounts for these services range $78–$177 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 547 | 92 |
| Clonazepam | 282 | 47 |
| Buspirone Hcl | 279 | 58 |
| Duloxetine Hcl | 262 | 55 |
| Lamotrigine | 237 | 62 |
| Trazodone Hcl | 233 | 60 |
| Quetiapine Fumarate | 233 | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,955 across 191 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
- 2006-08-20
- Last updated
- 2013-01-18
Frequently asked questions
- What is Julia Irwin's NPI number?
- Julia Irwin's National Provider Identifier (NPI) is 1306951124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Irwin's specialty?
- Julia Irwin is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Julia Irwin located?
- Julia Irwin's practice location on file with NPPES is 820 Wall St, Norman, OK 73069-6302.
- What is Julia Irwin's phone number?
- The practice phone number listed in the NPPES registry for Julia Irwin is (405) 928-2044.
- Does Julia Irwin accept Medicare?
- Julia Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julia Irwin's NPI active?
- Yes — Julia Irwin's NPI (1306951124) is active in the NPPES registry as of the last update on 2013-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.