JOHN J. O'BRIEN (M.D.) – Family Medicine Physician, NPI 1083689061
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Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for JOHN J. O'BRIEN (M.D.)
9426 Phoenix Village Pkwy
O Fallon, MO 633684781
Phone: (636) 561-5999
Fax: (636) 561-4746
Type: Location
Highway K, O’Fallon, Saint Charles County, Missouri, 63368, United States
O FALLON, MO 633686624
Phone: (636) 240-5454
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 32 Open Payments records for all available years, with a total value of $585.
Total Amount is formed as General ($585) + Research ($0) + Ownership ($0) = $585.
Last reported payment date: 2023-07-20 • Largest payer in this snapshot: ABBVIE INC. ($170).
Total Amount
$585
General + Research + Ownership
Payments
32
Total payment records
General Amount
$585
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-07-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $170 |
| PFIZER INC. | $66 |
| AstraZeneca Pharmaceuticals LP | $65 |
| Lilly USA, LLC | $65 |
| Janssen Pharmaceuticals, Inc | $37 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
No Medicare enrollment or revalidation data available for this provider in our database.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 145 | 118 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 100 | 85 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 63 | 63 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 37 | 33 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 13 | 11 | $0 |
Insurance plans in this area (ZIP 63368)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | MO | 90670 | Pneumococcal vaccine for injection into muscle | 39 | 39 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MO | |
| Internal Medicine | MO | |
| Nurse Practitioner | MO | |
| - | MO | |
| - | IL | |
| - | MO | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MO | |
| Physical Medicine And Rehabilitation | MO | |
| - | MO | |
| Nurse Practitioner | MO |
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