Dr. Cory S. Nelkin, DO
- Medicare services, 2024
- 971
- Medicare patients, 2024
- 407
- Part D claims, 2024
- 547
- Hospital affiliations
- 2
- Industry payments
- $81
- Practice address
- 354 Santa Fe Drive, Encinitas, CA 92024
- Practice phone
- Call (760) 753-6501
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nelkin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Cory S. Nelkin is an internist in Encinitas, California
Dr. Nelkin practices at Scripps Memorial Hospital Encinitas in Encinitas, California, part of Scripps Health.
Dr. Nelkin's NPI, 1831475136, was assigned on October 31, 2011. Dr. Nelkin graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 2011. Dr. Nelkin holds California license 20A13311.
- NPI
- 1831475136NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739305459
- NPI enumeration date
- October 31, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 753-6501
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cory S. Nelkin practices at Scripps Memorial Hospital Encinitas in Encinitas, California
Dr. Nelkin's primary practice is Scripps Memorial Hospital Encinitas, at 354 Santa Fe Drive, Encinitas, CA 92024 in San Diego County. The practice phone is (760) 753-6501.
- Scripps Memorial Hospital Encinitas354 Santa Fe Drive, Encinitas, CA 92024 · San Diego CountyPhone(760) 753-6501
Source: Dmand AI Affiliation Data
Dr. Cory S. Nelkin is affiliated with 2 sites of care and 3 medical groups
Dr. Nelkin's primary practice is Scripps Memorial Hospital Encinitas in Encinitas, California, part of Scripps Health. Dr. Nelkin is also affiliated with Palomar UC San Diego Health Poway. The medical group on file is Encinitas Hospitalist Associates. Dmand AI also links Dr. Nelkin to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cory S. Nelkin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nelkin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Memorial Hospital Encinitas | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cory S. Nelkin is one of 16,751 internists in California
Internal medicine is Dr. Nelkin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nelkin is board certified in internal medicine by the AOA Board of Internal Medicine. Dmand AI has Dr. Nelkin's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Texas license
Clinical focus
Dmand AI lists acute respiratory failure, anemia, atrial fibrillation and flutter, cellulitis, chest pain, chronic diabetes, chronic hypertension and chronic kidney disease among the conditions Dr. Nelkin treats.
Internists near Dr. Nelkin
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Cory S. Nelkin billed Medicare for 971 services in 2024
CMS data shows 971 Medicare services from Dr. Nelkin across 3 procedure codes in 2024, for 407 Medicare patients. Medicare paid $94,514 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nelkin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8552024: 97114%
Dr. Nelkin compared with the California median for internists, 2024
- Dr. Nelkin
- California median
- Medicare services
- 971vs 3612.7 times
- Medicare patients
- 407vs 1512.7 times
- Part D claims
- 222vs 42147% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Nelkin's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Nelkin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nelkin and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cory S. Nelkin treated 407 Medicare patients in 2024, average age 79
CMS counts 407 Medicare patients who saw Dr. Nelkin in 2024. The largest group is 75 to 84, with 165 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.22, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nelkin's median patient age at 74, with 55% women.
Dr. Nelkin's Medicare patients by age, 2024
Dr. Nelkin's Medicare patients by sex, 2024
- Women22856%
- Men17944%
Chronic conditions among Dr. Nelkin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Chronic kidney disease45%
- Heart failure44%
- Mood disorders44%
- Depression43%
- Ischemic heart disease43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nelkin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Cory S. Nelkin wrote 547 Medicare Part D claims in 2024
In 2024, Dr. Nelkin wrote 547 Medicare Part D claims for 236 patients. 87% of them were for generic drugs. CMS names the drug for 222 of them, across 13 drugs with 11 or more claims each, at $9,281 in total drug cost. In 2023, CMS named 507 claims across 22 drugs.
Dr. Nelkin's Part D claims by kind of drug, 2024
- Generic475 claims87%
- Brand-name and other72 claims13%
Dr. Nelkin's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nelkin's Part D claims, 2024
- Opioids7%40 of 547 claims
- Antibiotics16%90 of 547 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5072024: 22256%
Drugs named by CMS: 13 in 2024, 22 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Cory S. Nelkin takes part in Medicare
Dr. Nelkin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Cory S. Nelkin received $81 in industry payments from 2021 to 2022
CMS Open Payments shows 4 general payments to Dr. Nelkin from 1 drug or device company from 2021 to 2022. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $81.
General payments to Dr. Nelkin by program year, 2021 to 2022
Companies that paid Dr. Nelkin the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cory S. Nelkin graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine
Dr. Nelkin graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 2011. Dr. Nelkin is a member of AOA.
- Medical school
- Board certified in internal medicine
- Board certified in 2014 - 2025
- Board certified in 2013 - 2016
Source: Dmand AI Professional Profile Data
Dr. Cory S. Nelkin accepts plans from 8 insurance carriers
Dr. Nelkin is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Molina
Plan types Dr. Nelkin accepts, by number of carriers
- Medicare7
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Cory S. Nelkin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Cory S. Nelkin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Cory S. Nelkin's NPI number?
Dr. Cory S. Nelkin's NPI number is 1831475136. It was assigned on October 31, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Cory S. Nelkin?
Dr. Cory S. Nelkin is an internist in Encinitas, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Cory S. Nelkin practice?
Dr. Nelkin practices at 354 Santa Fe Drive, Encinitas, CA 92024. Dr. Nelkin's primary practice is Scripps Memorial Hospital Encinitas in Encinitas, California, part of Scripps Health. Dmand AI also links Dr. Nelkin to 2 medical groups.
What is Dr. Cory S. Nelkin's office phone number?
The practice phone on file for Dr. Nelkin is (760) 753-6501.
What is Dr. Cory S. Nelkin's medical license number?
Dr. Nelkin holds California license 20A13311, one of the licenses on file in 2 states.
Which states has Dr. Cory S. Nelkin been licensed in?
Dmand AI has state licenses on file for Dr. Nelkin in California and Texas.
Which hospitals is Dr. Cory S. Nelkin affiliated with?
Dr. Nelkin practices at Scripps Memorial Hospital Encinitas in Encinitas, California. Dr. Nelkin is also affiliated with Palomar UC San Diego Health Poway.
What medical group is Dr. Cory S. Nelkin part of?
Dr. Nelkin is linked to Encinitas Hospitalist Associates. Dmand AI links Dr. Nelkin to 2 more medical groups.
Does Dr. Cory S. Nelkin accept Medicare?
Yes. CMS data shows Dr. Nelkin billed Medicare for 971 services in 2024, and Dr. Nelkin accepts Medicare assignment.
How many Medicare patients does Dr. Cory S. Nelkin see?
CMS counts 407 Medicare patients who saw Dr. Nelkin in 2024, with an average age of 79.
Show 7 more questionsShow fewer questions
Is Dr. Cory S. Nelkin board certified?
Yes. Dr. Nelkin is board certified in internal medicine by the AOA Board of Internal Medicine.
What services does Dr. Cory S. Nelkin bill to Medicare?
In 2024, Dr. Nelkin's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. Cory S. Nelkin go to medical school?
Dr. Nelkin graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 2011.
What drugs does Dr. Cory S. Nelkin prescribe most?
In 2024 Medicare Part D data, Dr. Nelkin's most prescribed drugs by claims were Cefuroxime, Furosemide and Losartan Potassium.
Has Dr. Cory S. Nelkin received payments from drug or device companies?
CMS Open Payments shows $81 in general payments to Dr. Nelkin from 1 company from 2021 to 2022. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Cory S. Nelkin been practicing?
Dr. Nelkin graduated from medical school in 2011, 15 years ago.
What insurance does Dr. Cory S. Nelkin accept?
Dr. Nelkin is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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