Cory Nelkin, D.O.
Internal Medicine Physician · Poway, CA
Cory Nelkin, D.O. is an internal medicine physician with a practice address in Poway, California, and NPI 1831475136, issued on Oct 31, 2011. Check the license (California 20A13311, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cory Nelkin
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 20A13311 CA
L0103652-0328 TX
P8058 TX
Self-reported in NPPES; status is on the state search - Practice location
- 15615 Pomerado RD, Poway, CA 92064
- Phone
- (858) 613-4000
- Enumerated
- Oct 31, 2011
- Record last updated
- Sep 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140731002767); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 15615 Pomerado RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Monica Andrawes, PHARMDPharmacist1780107938
- Rachel Avila, OTR/LOccupational Therapist1881282879
- Tanya Davis, RN, PHNMedical-Surgical Registered Nurse1548789894
- Jacob Denoyer, BSN, RNStudent in an Organized Health Care Education/Training Program1285569160
- Shawn Laird, RN, NPAdult Health Nurse Practitioner1134526270
- Jee LeePharmacist1477409902
Verify Cory Nelkin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13311Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
547 Medicare Part D claims for 236 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 40 claims were for opioids.
Most prescribed
- Cefuroxime37 claims
- Furosemide23 claims
- Losartan Potassium21 claims
- Oxycodone Hcl17 claims
- Prednisone17 claims
- Atorvastatin Calcium15 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
- North County Inpatient Medical Alliance, A Medical Group, IncEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cory Nelkin among 17,696 internal medicine physician records in California
Cory Nelkin, D.O. 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
23 internal medicine physician records list a practice address in Poway
They are 23 of the 1,306 NPPES records with a practice address in Poway, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Poway → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jerome Brodkin, MDPoway, CA 920641518933878
- David Carty, MDPoway, CA 920641205802568
- Belinda Dure-Smith, MDPoway, CA 920641487620662
- Suzanne Johnston, D.OPoway, CA 920641780787762
- Bill Joswig, MDPoway, CA 920641245206457
- Stuart Klein, MDPoway, CA 920641104834472
- Dennis Mamaril, MDPoway, CA 920641508832601
- Richard Merino, MDPoway, CA 920641174628317
Common questions
What is Cory Nelkin, D.O.'s NPI number?
Cory Nelkin, D.O.'s National Provider Identifier (NPI) is 1831475136, issued on Oct 31, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Cory Nelkin, D.O. located?
The NPPES record lists a practice address at 15615 Pomerado RD, Poway, CA, 92064. Phone: (858) 613-4000. Providers update this record themselves, so call before visiting.
How can I verify Cory Nelkin, D.O.'s license?
NPPES lists California license number 20A13311, 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 Cory Nelkin, D.O. prescribe under Medicare Part D?
In 2024, Cory Nelkin, D.O. had 547 Medicare Part D claims for 236 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.