Edgar Alan Ongtengco, MD
Internal Medicine Physician · Johnson City, TN
Edgar Alan Ongtengco, MD is an internal medicine physician with a practice address in Johnson City, Tennessee, and NPI 1932165057, issued on Apr 26, 2006. Check the license (Tennessee MD26713, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Edgar Alan Ongtengco
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD26713 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1019 W Oakland Ave, Johnson City, TN 37604
- Phone
- (423) 915-5000
- Enumerated
- Apr 26, 2006
- Record last updated
- Jun 24, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (423) 915-5045
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 1019 W Oakland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Margaret Flynn, FNPFamily Nurse Practitioner1487611018
- Gordon Hoppe, MDFamily Medicine Physician1497711097
- Farshad Karimpour, M.D.Emergency Medicine Physician1679768204
Verify Edgar Alan Ongtengco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license MD26713Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,006 Medicare Part D claims for 69 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Buprenorphine-Naloxone511 claims
- Clonazepam311 claims
- Diazepam246 claims
- Gabapentin204 claims
- Promethazine Hcl70 claims
- Buprenorphine Hcl67 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.
Edgar Alan Ongtengco among 2,596 internal medicine physician records in Tennessee
Edgar Alan Ongtengco, MD is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2010 · 56% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
125 internal medicine physician records list a practice address in Johnson City
They are 125 of the 3,807 NPPES records with a practice address in Johnson City, and 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Johnson City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul Brown, MDJohnson City, TN 376041326043167
- Matthew Cary, MDJohnson City, TN 376041306841440
- Keith Cook, MDJohnson City, TN 376041396740957
- Frank Forbush, MDJohnson City, TN 376041538164660
- Mary Gibson, MDJohnson City, TN 376041164427290
- Michael Grosserode, MDJohnson City, TN 376041710982848
- Christopher Hemphill, MDJohnson City, TN 376041053316232
- Randy Hoover, MDJohnson City, TN 376041255336434
Common questions
What is Edgar Alan Ongtengco, MD's NPI number?
Edgar Alan Ongtengco, MD's National Provider Identifier (NPI) is 1932165057, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Edgar Alan Ongtengco, MD located?
The NPPES record lists a practice address at 1019 W Oakland Ave, Johnson City, TN, 37604. Phone: (423) 915-5000. Providers update this record themselves, so call before visiting.
How can I verify Edgar Alan Ongtengco, MD's license?
NPPES lists Tennessee license number MD26713, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Edgar Alan Ongtengco, MD prescribe under Medicare Part D?
In 2024, Edgar Alan Ongtengco, MD had 2,006 Medicare Part D claims for 69 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.