Dr. Erna M. Kojic, MD
- Medicare services, 2022
- 158
- Part D claims, 2023
- 52
- Publications
- 45
- Industry payments
- $56
- Affiliated sites
- 1
- Practice address
- 1111 Amsterdam Ave, New York, NY 10025-1716
- Practice phone
- Call (212) 241-9410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Icahn School Of Medicine At Mount Sinai - New York (1111 Amsterdam Ave)
Multi-specialty group site · New York, New York
Find Dr. Kojic'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. Erna M. Kojic is an infectious disease specialist in North Providence, Rhode Island
Dr. Kojic practices at Icahn School Of Medicine At Mount Sinai - New York (1111 Amsterdam Ave) in New York, New York.
Dr. Kojic's NPI, 1255385472, was assigned on May 20, 2006. Dr. Kojic graduated from University of Iceland in 1992. Dr. Kojic holds New York license 284962.
- NPI
- 1255385472NPI Registry (opens in a new tab)
- NPI enumeration date
- May 20, 2006
- NPI status
- Active
- Practice phone
- (212) 241-9410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Erna M. Kojic practices in New York and North Providence
Dr. Kojic's primary practice is Icahn School of Medicine at Mount Sinai - New York (1111 Amsterdam Ave), at 1111 Amsterdam Ave, New York, NY 10025-1716. The practice phone is (212) 241-9410. The NPI Registry lists Dr. Kojic's practice address as 1894 Smith St, North Providence, RI 02911.
- Icahn School of Medicine at Mount Sinai - New York (1111 Amsterdam Ave)Primary1111 Amsterdam Ave, New York, NY 10025-1716Phone(212) 241-9410
- NPI Registry address1894 Smith St, North Providence, RI 02911 · Providence CountyPhone(212) 523-5918
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Erna M. Kojic is affiliated with 1 site of care and 1 medical group
Dr. Kojic's primary practice is Icahn School Of Medicine At Mount Sinai - New York (1111 Amsterdam Ave) in New York, New York. The medical group on file is Mount Sinai Institute for Liver Medicine.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Erna M. Kojic's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kojic practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Icahn School Of Medicine At Mount Sinai - New York (1111 Amsterdam Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Erna M. Kojic is one of 56 infectious disease specialists in Rhode Island
Infectious disease is Dr. Kojic's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dmand AI has Dr. Kojic's licenses on file in 2 states: New York and Rhode Island.
Specialties and state licenses
- Infectious disease, New YorkPrimary
- Rhode Island license
Infectious disease specialists near Dr. Kojic
Counts of infectious disease specialists 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. Erna M. Kojic billed Medicare for 158 services in 2022
CMS data shows 158 Medicare services from Dr. Kojic across 6 procedure codes in 2022. Medicare paid $13,996 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kojic's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 2492022: 15837%
- Surgery
- 2021: 162022: 0100%
Dr. Kojic compared with the Rhode Island median for infectious disease specialists, 2022
- Dr. Kojic
- Rhode Island median
- Medicare services
- 158vs 9174% above
- Part D claims
- 52vs 10852% below
Medians across 55 infectious disease specialists in Rhode Island with Dmand AI profiles that report each measure.
Dr. Kojic's most billed Medicare procedure codes, 2022
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. Kojic?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kojic and other infectious disease specialists in Rhode Island.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Erna M. Kojic's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Kojic's median patient age at 60, with 38% women.
Dr. Kojic's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women38%
- Men63%
Source: Dmand AI Patient Panel Data
Dr. Erna M. Kojic wrote 52 Medicare Part D claims in 2023
In 2023, Dr. Kojic wrote 52 Medicare Part D claims. They cover 4 drugs, with $82,842 in total drug cost. In 2022, CMS named 1,483 claims across 59 drugs.
Dr. Kojic's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1,4832023: 5296%
Drugs named by CMS: 4 in 2023, 59 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Erna M. Kojic has 45 publications on record
Dmand AI links 45 papers to Dr. Kojic, published from 2007 to 2023. 2015 was the busiest year, with 7. The most frequent topics are HIV Infections, Papillomavirus Infections and Anti-HIV Agents. Dr. Kojic has published most often in J Infect Dis. Dr. Kojic's most frequent co-authors are Pragna Patel, MD, MPH, Gerome Villamor Escota, MD and Joel M. Palefsky, MD.
Dr. Kojic's papers by year, 2011 to 2023
Topics Dr. Kojic writes about most
- HIV Infections
- Papillomavirus Infections
- Anti-HIV Agents
- Anal Canal
- Rhode Island
- Cervix Uteri
- SARS-CoV-2
- Antibodies, Viral
Dr. Kojic's most frequent co-authors
- Pragna Patel, MD, MPH14 shared papers
- Gerome Villamor Escota, MD5 shared papers
- Joel M. Palefsky, MD4 shared papers
Recent publications by Dr. Kojic
AIDS Res Hum Retroviruses
See who Dr. Kojic researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kojic works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Erna M. Kojic received $56 in industry payments from 2017 to 2021
CMS Open Payments shows 2 general payments to Dr. Kojic from 2 drug and device companies from 2017 to 2021. Education make up the largest share, 56% of the total. Allergan Inc. paid the most, $32.
General payments to Dr. Kojic by program year, 2017 to 2021
General payments to Dr. Kojic by kind, 2017 to 2021
- Education$3256%
- Food and beverage$2544%
Companies that paid Dr. Kojic the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Erna M. Kojic graduated from University of Iceland
Dr. Kojic graduated from University of Iceland in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Erna M. Kojic'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Erna M. Kojic
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. Erna M. Kojic's NPI number?
Dr. Erna M. Kojic's NPI number is 1255385472. It was assigned on May 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Erna M. Kojic?
Dr. Erna M. Kojic is an infectious disease specialist in North Providence, Rhode Island. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Erna M. Kojic practice?
Dr. Kojic practices at 1111 Amsterdam Ave, New York, NY 10025-1716. Dr. Kojic also practices at 1894 Smith St, North Providence, RI 02911. Dr. Kojic's primary practice is Icahn School Of Medicine At Mount Sinai - New York (1111 Amsterdam Ave) in New York, New York.
What is Dr. Erna M. Kojic's office phone number?
The practice phone on file for Dr. Kojic is (212) 241-9410.
What is Dr. Erna M. Kojic's medical license number?
Dr. Kojic holds New York license 284962, one of the licenses on file in 2 states.
Which states has Dr. Erna M. Kojic been licensed in?
Dmand AI has state licenses on file for Dr. Kojic in New York and Rhode Island.
What medical group is Dr. Erna M. Kojic part of?
Dr. Kojic is linked to Mount Sinai Institute for Liver Medicine.
Does Dr. Erna M. Kojic accept Medicare?
Yes. CMS data shows Dr. Kojic billed Medicare for 158 services in 2022.
What services does Dr. Erna M. Kojic bill to Medicare?
In 2022, Dr. Kojic's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and hospital inpatient care (99232).
Where did Dr. Erna M. Kojic go to medical school?
Dr. Kojic graduated from University of Iceland in 1992.
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What drugs does Dr. Erna M. Kojic prescribe most?
In 2023 Medicare Part D data, Dr. Kojic's most prescribed drugs by claims were Tivicay, Atorvastatin Calcium and Biktarvy.
Has Dr. Erna M. Kojic received payments from drug or device companies?
CMS Open Payments shows $56 in general payments to Dr. Kojic from 2 companies from 2017 to 2021. The largest total came from Allergan Inc.
How long has Dr. Erna M. Kojic been practicing?
Dr. Kojic graduated from medical school in 1992, 34 years ago.
Does Dr. Erna M. Kojic do research?
Dmand AI links 45 publications to Dr. Kojic, published from 2007 to 2023.
Who does Dr. Erna M. Kojic publish with?
Dr. Kojic's most frequent co-authors are Pragna Patel, MD, MPH (14 shared papers), Gerome Villamor Escota, MD (5 shared papers) and Joel M. Palefsky, MD (4 shared papers).
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