SYLVAN COX (M.D.) – Critical Care Medicine (Internal Medicine) Physician, NPI 1629464938
Critical Care Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
135 CRITICAL CARE (INTENSIVISTS) in NM
Provider Addresses for SYLVAN COX (M.D.)
DEPARTMENT OF INTERNAL MEDICINE MSC 10 5550
1 UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NM 871310001
Phone: (505) 272-6331
Type: Mailing
2175 ROSALINE AVE
REDDING, CA 960012549
Phone: (530) 225-6000
Type: Location
PO BOX 991844
REDDING, CA 960991844
Phone: (530) 246-9806
Fax: (530) 246-9808
Type: Mailing
Department Of Internal Medicine Msc 10 5550
1 University of New Mexico
Albuquerque, NM 87131
Phone: (505) 272-6331
Type: Location
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: 2021-06-08
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 |
|---|---|---|---|---|
| I20210608002542 | I | Critical Care (Intensivists) | CA | 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 | 391 | 225 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 126 | 89 | $0 |
| 36620 | Insertion of artery tube for blood sampling or infusion through skin | 30 | 29 | $0 |
| 99292 | Critical care, each additional 30 minutes | 30 | 25 | $0 |
| 36556 | Insertion of non-tunneled central venous tube for infusion (5 years or older) | 22 | 21 | $0 |
Insurance plans in this area (ZIP 87131)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Critical Care (Intensivists), Anesthesiology | KY | |
| Critical Care (Intensivists), General Surgery | CA | |
| - | CA | |
| Infectious Disease, Internal Medicine | CA | |
| Undefined Physician Type (Specify), Neurology | CA | |
| Critical Care (Intensivists), Internal Medicine | CA | |
| Infectious Disease, Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Pulmonary Disease, Critical Care (Intensivists) | CA | |
| Nurse Practitioner | CA |
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