DORA CECILIA RIOJA-MAZZA (MD) – Emergency Medicine Physician, NPI 1154575157
Emergency Medicine Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DORA CECILIA RIOJA-MAZZA (MD)
1850 HOSPITAL CENTER
RESTON HOSPITAL CENTER
RESTON, VA 20190
Phone: (703) 689-9037
Fax: (703) 689-9109
Type: Location
Century Boulevard, The Colony, Germantown, Montgomery County, Maryland, 20876, United States
EMERGENCY MEDICINE ASSOCIATES
GERMANTOWN, MD 20874
Phone: (301) 669-2320
Fax: (240) 686-2330
Type: Mailing
3449 Wilkens Ave Ste 308
Baltimore, MD 212295218
Phone: (410) 646-1200
Type: Location
3449 WILKENS AVE STE 308
BALTIMORE, MD 212295218
Phone: (410) 646-1200
Fax: (240) 686-2330
Type: Mailing
24440 STONE SPRINGS BLVD
DULLES, VA 201662247
Phone: (571) 349-5271
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $60.
Total Amount is formed as General ($60) + Research ($0) + Ownership ($0) = $60.
Last reported payment date: 2023-06-02 • Largest payer in this snapshot: SANOFI PASTEUR INC. ($45).
Total Amount
$60
General + Research + Ownership
Payments
2
Total payment records
General Amount
$60
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| SANOFI PASTEUR INC. | $45 |
| Cranial Technologies, Inc | $14 |
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: 2013-10-11
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 |
|---|---|---|---|---|
| I20131011000641 | I | Pediatric Medicine | VA | 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 20190)
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