DR. MAHEEN SHEIKH (M.D.) – Gastroenterology Physician, NPI 1144540477
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
369 GASTROENTEROLOGY in CO
Provider Addresses for DR. MAHEEN SHEIKH (M.D.)
8225 W 20TH ST
GREELEY, CO 806343037
Phone: (970) 378-1414
Fax: (970) 378-1515
Type: Location
9305 W THOMAS RD
SUITE 478
PHOENIX, AZ 850373328
Phone: (623) 236-8507
Fax: (623) 236-8508
Type: Mailing
1925 Mountain View Ave
Longmont, CO 805013128
Phone: (720) 494-3123
Fax: (720) 494-3114
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: 2017-01-04
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 |
|---|---|---|---|---|
| I20170104001115 | I | Gastroenterology | AZ | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 80634)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Gastroenterology | AZ | |
| Physician Assistant | AZ | |
| Nurse Practitioner | AZ | |
| Infectious Disease, Internal Medicine | AZ | |
| Nurse Practitioner | AZ | |
| Cardiac Surgery | IN | |
| - | AZ | |
| General Surgery | AZ | |
| Sports Medicine | IL | |
| Orthopedic Surgery | AZ |
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