MARK JAMES FOSTER (PA) – Physician Assistant, NPI 1639168479
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,166 PHYSICIAN ASSISTANT in CO
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Provider Addresses for MARK JAMES FOSTER (PA)
Mercy Regional Medical Center, 1010, Three Springs Boulevard, Durango, La Plata County, Colorado, 81301, United States
DURANGO, CO 813018296
Phone: (970) 247-4311
Type: Location
Denver Post Office, 101, Snyder Street, Denver, Lancaster County, Pennsylvania, 17517, United States
DENVER, CO 802175471
Phone: (866) 898-7136
Fax: (616) 975-9824
Type: Mailing
2577 MAIN AVE
DURANGO, CO 813015919
Phone: (970) 247-8382
Fax: (970) 259-4403
Type: Mailing
1942 E MAIN ST
CORTEZ, CO 813213039
Phone: (970) 516-5500
Fax: (970) 516-2500
Type: Location
1010 Three Springs Blvd
Durango, CO 813018296
Phone: (970) 247-4311
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: 2006-01-11
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 |
|---|---|---|---|---|
| I20060111000381 | I | Physician Assistant | CO | 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 |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 197 | 188 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 150 | 148 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 68 | 66 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 59 | 52 | $0 |
| 99291 | Critical care, first 30-74 minutes | 37 | 37 | $0 |
Insurance plans in this area (ZIP 81301)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CO | |
| Physician Assistant | ME | |
| Nurse Practitioner | CA | |
| Physician Assistant | CO | |
| Physical Therapist In Private Practice | CO | |
| Nurse Practitioner | NM | |
| Physician Assistant | CO | |
| Nurse Practitioner | NM | |
| Emergency Medicine | UT | |
| Physician Assistant | CO |
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