DIANA ANA CER (DO) – Emergency Medicine Physician, NPI 1225261746
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
236 EMERGENCY MEDICINE in DE
Provider Addresses for DIANA ANA CER (DO)
404 FOX HUNT DR
BEAR, DE 197012538
Phone: (302) 652-2455
Fax: (302) 322-6251
Type: Location
5600 S QUEBEC ST
GREENWOOD VILLAGE, CO 801112207
Phone: (303) 953-5643
Fax: (303) 436-2710
Type: Mailing
501 E HAMPDEN AVE
ENGLEWOOD, CO 801132702
Phone: (303) 953-5643
Type: Location
404 Fox Hunt Dr
Bear, DE 197012538
Phone: (302) 652-2455
Fax: (302) 322-6251
Type: Location
1401 Foulk Rd Ste 100B
Wilmington, DE 198032764
Phone: (302) 477-3300
Type: Location
151, Castle Peak Road – Mai Po, Mai Po San Tsuen, San Tin, Yuen Long District, New Territories, Hong Kong, 518048, China
NEW CASTLE, DE 197200151
Phone: (302) 652-2455
Fax: (302) 322-6251
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: 2022-12-06
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 |
|---|---|---|---|---|
| I20221206001758 | I | Emergency Medicine | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 126 | 126 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 64 | 64 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 33 | 31 | $0 |
| 99291 | Critical care, first 30-74 minutes | 18 | 18 | $0 |
Insurance plans in this area (ZIP 19701)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | NY | |
| Emergency Medicine | CO | |
| Emergency Medicine | CO | |
| Physician Assistant | CO | |
| Emergency Medicine | NY | |
| Emergency Medicine | CO | |
| Emergency Medicine | PA | |
| Emergency Medicine | IL | |
| Physician Assistant | NY | |
| Emergency Medicine | MI |
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