Ratnasiri Gunawardena, MD
NPI 1700851300 · Endocrinology, Diabetes & Metabolism Physician · Norfolk, VA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ratnasiri Gunawardena, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Norfolk, VA (NPI 1700851300).
Provider details
- NPI number
- 1700851300
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2003013994 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,115 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,447 | $97 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 479 | $10 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 79 | $133 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 55 | $35 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 | $79 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 735 | 143 |
| Levothyroxine Sodium | 672 | 183 |
| Metformin Hcl | 328 | 108 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 299 | 102 |
| Empagliflozinbrand: Jardiance | 274 | 81 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 234 | 71 |
Practice location
Mailing address
Additional practice locations (1)
- 1066 Executive Parkway DrSuite 105Saint Louis, MO 63141-6340Phone: (314) 317-0600Fax: (314) 317-0606
Registry dates
- Enumerated
- 2006-02-17
- Last updated
- 2023-12-29
- Certified
- 2023-12-29
Frequently asked questions
- What is Ratnasiri Gunawardena's NPI number?
- Ratnasiri Gunawardena's National Provider Identifier (NPI) is 1700851300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ratnasiri Gunawardena's specialty?
- Ratnasiri Gunawardena is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Ratnasiri Gunawardena located?
- Ratnasiri Gunawardena's practice location on file with NPPES is 850 Kempsville Rd Ste 100e, Norfolk, VA 23502-3920.
- What is Ratnasiri Gunawardena's phone number?
- The practice phone number listed in the NPPES registry for Ratnasiri Gunawardena is (757) 261-5744.
- Does Ratnasiri Gunawardena accept Medicare?
- Ratnasiri Gunawardena is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ratnasiri Gunawardena's NPI active?
- Yes — Ratnasiri Gunawardena's NPI (1700851300) is active in the NPPES registry as of the last update on 2023-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.