DR. DOREEN HUNG MAR (MD) – Emergency Medicine Physician, NPI 1528032737
Emergency Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. DOREEN HUNG MAR (MD)
East Jefferson Street, Croydon Park, Rockville, Montgomery County, Maryland, 20850-3827, United States
KAISER PERMANENTE MEDICARE ENROLLMENT
ROCKVILLE, MD 208524908
Phone: (301) 816-2424
Type: Mailing
201, North Washington Street, Tyler Gardens, Hillwood, Falls Church, Fairfax County, Virginia, 22046, United States
KAISER PERMANENTE FALLS CHURCH MEDICAL CENTER
FALLS CHURCH, VA 220464518
Phone: (703) 237-4000
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: 2010-12-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20101213000291 | I | Emergency Medicine | DC | TBD |
| I20101220001034 | I | Emergency 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 20852)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MD | |
| - | MD | |
| Internal Medicine | VA | |
| Family Practice | VA | |
| Family Practice | VA | |
| - | MD | |
| - | MD | |
| Family Practice | WV | |
| - | GA | |
| - | MD |
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