Emily E. Ray Ko, M.D.
Hospitalist Physician · Durham, NC
Emily E. Ray Ko, M.D. is a hospitalist physician with a practice address in Durham, North Carolina, and NPI 1336342997, issued on Jun 8, 2007. Check the license (North Carolina 2012-01967, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Emily E. Ray Ko
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 2012-01967 NC
MD60166435 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4103 Graceview Way, Durham, NC 27705
- Phone
- (206) 240-3764
- Enumerated
- Jun 8, 2007
- Record last updated
- Oct 4, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130111000092); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 989 in North Carolina → Look up another NPI →
Verify Emily E. Ray Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2012-01967Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average hospitalist physician in 2024
64 Medicare Part D claims for 21 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Duke University Health System, IncDurham, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emily E. Ray Ko among 989 hospitalist physician records in North Carolina
Emily E. Ray Ko, M.D. is one of 989 hospitalist physician records with a practice address in North Carolina. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 67% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated1997 · median 2010 among the 836 with a school on file
- Record last updated2012 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in North Carolina
There are 989 hospitalist physician records in North Carolina.
All 989 in North Carolina → Every provider in Durham → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Gilbert Acevedo, M.D.Durham, NC 277051619330255
- Joel BogganDurham, NC 277051992947147
- Amber Bowman, M.D.Durham, NC 277051710154042
- Laura Caputo, MDDurham, NC 277051841580313
- Mary Charles, M.D.Durham, NC 277051679936736
- Jennifer Gutierrez McCarty, MDDurham, NC 277051164698072
- Cynthia Johnson, M.D.Durham, NC 277051124037304
- Brice Lefler, M.D.Durham, NC 277051710244348
Common questions
What is Emily E. Ray Ko, M.D.'s NPI number?
Emily E. Ray Ko, M.D.'s National Provider Identifier (NPI) is 1336342997, issued on Jun 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Emily E. Ray Ko, M.D. located?
The NPPES record lists a practice address at 4103 Graceview Way, Durham, NC, 27705. Phone: (206) 240-3764. Providers update this record themselves, so call before visiting.
How can I verify Emily E. Ray Ko, M.D.'s license?
NPPES lists North Carolina license number 2012-01967, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Emily E. Ray Ko, M.D. prescribe under Medicare Part D?
In 2024, Emily E. Ray Ko, M.D. had 64 Medicare Part D claims for 21 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.