SANG WOOK AN (M.D.) – Internal Medicine Physician, NPI 1033437017
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,245 INTERNAL MEDICINE in MD
Provider Addresses for SANG WOOK AN (M.D.)
7602 BELAIR RD
BALTIMORE, MD 212364088
Phone: (410) 663-8100
Fax: (410) 663-8119
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $16.
Total Amount is formed as General ($16) + Research ($0) + Ownership ($0) = $16.
Last reported payment date: 2023-05-13 • Largest payer in this snapshot: ACADIA Pharmaceuticals Inc ($16).
Total Amount
$16
General + Research + Ownership
Payments
1
Total payment records
General Amount
$16
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ACADIA Pharmaceuticals Inc | $16 |
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: 2013-09-13
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 |
|---|---|---|---|---|
| I20130913000590 | I | Internal Medicine | MD | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 869 | 432 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 232 | 163 | $0 |
| 82962 | Blood glucose (sugar) test performed by hand-held instrument | 221 | 122 | $0 |
| 83036 | Hemoglobin a1c level | 151 | 104 | $0 |
| G0008 | Administration of influenza virus vaccine | 114 | 113 | $0 |
Insurance plans in this area (ZIP 21236)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MD | |
| - | WV | |
| - | MD | |
| - | MD | |
| Physician Assistant | MD | |
| Nurse Practitioner | MD | |
| Nurse Practitioner | MD | |
| - | MD | |
| - | MD | |
| Nurse Practitioner | MD |
Reviews
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