David Hyunin Ko, MD
Internal Medicine Physician · Encinitas, CA
David Hyunin Ko, MD is an internal medicine physician with a practice address in Encinitas, California, and NPI 1689683690, issued on Aug 7, 2006. Check the license (California A69524, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Hyunin Ko
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A69524 CA
Self-reported in NPPES; status is on the state search - Practice location
- 477 N EL Camino Real Ste A208, Encinitas, CA 92024
- Phone
- (760) 479-3900
- Enumerated
- Aug 7, 2006
- Record last updated
- Jun 17, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (760) 753-8175
- Medicaid ID
- 00A695240 CA
- Medicare enrollment
- Enrolled (PECOS I20040123001028); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 477 N EL Camino Real Ste A208
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nancy Fierro, MDFamily Medicine Physician1063427425
- Shelley Hammer, FNPFamily Nurse Practitioner1689684615
- Gerard Lumkong, MDFamily Medicine Physician1720001977
Verify David Hyunin Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A69524Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,537 Medicare Part D claims for 713 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 140 claims were for opioids.
Most prescribed
- Atorvastatin Calcium619 claims
- Amlodipine Besylate399 claims
- Losartan Potassium394 claims
- Levothyroxine Sodium387 claims
- Tamsulosin Hcl221 claims
- Rosuvastatin Calcium214 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.
Industry payments in 2024: $196.91
9 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Scripps HealthEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Hyunin Ko among 17,696 internal medicine physician records in California
David Hyunin Ko, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1998 · median 2004 among the 11,065 with a school on file
- Record last updated2009 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 internal medicine physician records list a practice address in Encinitas
They are 63 of the 1,874 NPPES records with a practice address in Encinitas, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Encinitas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sonia Ahuja, M.D.Encinitas, CA 920241528059490
- Robert Bickerton, M.D.Encinitas, CA 920241992778765
- Dolly Doctor, MDEncinitas, CA 920241205871456
- Taiye Gilles, M.D.Encinitas, CA 920241841232733
- Robert Huang, M.D.Encinitas, CA 920241164423851
- James Labelle, M.D.Encinitas, CA 920241750381372
- Robert Matorin, M.D.Encinitas, CA 920241972525343
- Alexie Nguyen, M.D.Encinitas, CA 920241659367613
Common questions
What is David Hyunin Ko, MD's NPI number?
David Hyunin Ko, MD's National Provider Identifier (NPI) is 1689683690, issued on Aug 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Hyunin Ko, MD located?
The NPPES record lists a practice address at 477 N EL Camino Real Ste A208, Encinitas, CA, 92024. Phone: (760) 479-3900. Providers update this record themselves, so call before visiting.
How can I verify David Hyunin Ko, MD's license?
NPPES lists California license number A69524, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Hyunin Ko, MD prescribe under Medicare Part D?
In 2024, David Hyunin Ko, MD had 7,537 Medicare Part D claims for 713 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.