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.

IndividualActiveAccepts Medicare

Ratnasiri Gunawardena, MD

NPI 1700851300 · Endocrinology, Diabetes & Metabolism Physician · Norfolk, VA

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)

Practice location

850 Kempsville Rd Ste 100e

Norfolk, VA 23502-3920

Phone: (757) 261-5744

Fax: (757) 261-0321

Approximate (ZIP-level) locationGet directions

More VA providers

Mailing address

850 Kempsville Rd Ste 100e

Norfolk, VA 23502-3920

Specialties & taxonomies

Endocrinology, Diabetes & Metabolism PhysicianPrimary207RE0101XLicense 0101239066 (VA)
Allopathic & Osteopathic Physicians
Specialist174400000XLicense 2003013994 (MO)
Other Service Providers

Additional practice locations (1)

1066 Executive Parkway Dr
Suite 105
Saint Louis, MO 63141-6340
Phone: (314) 317-0600
Fax: (314) 317-0606

Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

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

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.

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

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)