DR. PATRICK T MAILLOUX (DO) – Critical Care Medicine (Internal Medicine) Physician, NPI 1689697708
Critical Care Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
790 PULMONARY DISEASE in MA
Provider Addresses for DR. PATRICK T MAILLOUX (DO)
759 Chestnut Street
S2668
Springfield, MA 011991001
Phone: (413) 794-5439
Fax: (413) 794-5389
Type: Location
Baystate Medical Center, 759, Chestnut Street, North End, Springfield, Hampden County, Massachusetts, 01199, United States
S2668
SPRINGFIELD, MA 011991001
Phone: (413) 794-5439
Fax: (413) 794-5389
Type: Location
280, Chestnut Street, Metro Center, Springfield, Hampden County, Massachusetts, 01103, United States
2ND FLOOR
SPRINGFIELD, MA 011991001
Phone: (413) 794-5700
Type: Mailing
100 FODEN RD STE 103
SOUTH PORTLAND, ME 041062327
Phone: (207) 828-1122
Fax: (207) 828-0188
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2018-05-22
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 |
|---|---|---|---|---|
| I20180522002541 | I | Pulmonary Disease | ME | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 132 | 82 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 91 | 64 | $0 |
Insurance plans in this area (ZIP 01199)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PULMONARY DISEASE | MA | 36556 | Insertion of central venous catheter for infusion, patient 5 years or older | 15 | 15 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease, Pediatric Medicine, Sleep Medicine | ME | |
| Physician Assistant | ME | |
| Emergency Medicine | ME | |
| Pulmonary Disease | ME | |
| Nurse Practitioner | NJ | |
| Critical Care (Intensivists) | ME | |
| - | ME | |
| Pulmonary Disease | ME | |
| Physician Assistant | ME | |
| Clinical Psychologist | ME |
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