RATNASIRI GUNAWARDENA (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1700851300
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,190 INTERNAL MEDICINE in MO
Provider Addresses for RATNASIRI GUNAWARDENA (MD)
1066 Executive Parkway Dr
Suite 105
Saint Louis, MO 631416340
Phone: (314) 317-0600
Fax: (314) 317-0606
Type: Location
850 KEMPSVILLE RD STE 100E
NORFOLK, VA 235023920
Phone: (757) 261-5744
Fax: (757) 261-0321
Type: Location
1066, Executive Parkway Drive, Fernridge, Creve Coeur, Saint Louis County, Missouri, 63141, United States
SUITE 105
SAINT LOUIS, MO 631416340
Phone: (314) 317-0600
Fax: (314) 317-0606
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: 2006-08-25
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 |
|---|---|---|---|---|
| I20060825000108 | I | Endocrinology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,479 | 742 | $0 |
| 77080 | Dxa bone density measurement of hip, pelvis, spine | 534 | 534 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 90 | 90 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 29 | 29 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 19 | 13 | $0 |
Insurance plans in this area (ZIP 63141)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | VA | |
| Nurse Practitioner | VA | |
| - | MI | |
| - | VA | |
| - | VA | |
| Pulmonary Disease, Internal Medicine | GA | |
| N E U R O L O G Y | VA | |
| Physician Assistant | VA | |
| - | VA | |
| Family Practice | VA |
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