DR. JAMES CHRISTOPHER O'BRIEN (M.D.) – Sleep Medicine (Internal Medicine) Physician, NPI 1962465070
Sleep Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,722 INTERNAL MEDICINE in MA
Provider Addresses for DR. JAMES CHRISTOPHER O'BRIEN (M.D.)
85 1ST AVE
WALTHAM, MA 024511105
Phone: (781) 895-7953
Fax: (781) 290-0720
Type: Mailing
599 FARMINGTON AVE
FARMINGTON, CT 060322381
Phone: (860) 284-4950
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $310.
Total Amount is formed as General ($310) + Research ($0) + Ownership ($0) = $310.
Last reported payment date: 2024-05-02 • Largest payer in this snapshot: Inspire Medical Systems, Inc. ($125).
Total Amount
$310
General + Research + Ownership
Payments
3
Total payment records
General Amount
$310
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inspire Medical Systems, Inc. | $125 |
| JAZZ PHARMACEUTICALS INC. | $122 |
| Itamar Medical Inc | $63 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-12-15
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20061215000359 | I | Pulmonary Disease | CT | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 117 | 95 | $0 |
| 95806 | Sleep study including heart rate, breathing, airflow, and effort | 92 | 92 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 61 | 57 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 20 | 20 | $0 |
| 95811 | Sleep study in sleep lab with continuous airway pressure (6 years or older) | 19 | 18 | $0 |
Insurance plans in this area (ZIP 02451)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Qualified Audiologist | CT | |
| Qualified Audiologist | GA | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| O T O L A R Y N G O L O G Y | CT | |
| Qualified Audiologist | CT | |
| Qualified Audiologist | CT | |
| Physician Assistant | CT | |
| O T O L A R Y N G O L O G Y | CT |
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