Dr. Ronald Fernandez, MD
- Medicare services, 2024
- 291
- Medicare patients, 2024
- 293
- Part D claims, 2024
- 189
- Hospital affiliations
- 1
- Industry payments
- $229
- Practice address
- 30 Prospect Ave, Hackensack, NJ 07601
- Practice phone
- Call (551) 996-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Ronald Fernandez is an emergency medicine physician in Hackensack, New Jersey
Dr. Fernandez practices at Hackensack University Medical Center in Hackensack, New Jersey, part of Hackensack Meridian Health.
Dr. Fernandez's NPI, 1942373345, was assigned on November 16, 2006. Dr. Fernandez graduated from Rutgers New Jersey Medical School in 2001. Dr. Fernandez holds New York license 232439.
- NPI
- 1942373345NPI Registry (opens in a new tab)
- NPI enumeration date
- November 16, 2006
- NPI status
- Active
- Practice phone
- (551) 996-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ronald Fernandez practices at Hackensack University Medical Center in Hackensack, New Jersey
Dr. Fernandez's primary practice is Hackensack University Medical Center, at 30 Prospect Ave, Hackensack, NJ 07601 in Bergen County. The practice phone is (551) 996-2000.
- Hackensack University Medical Center30 Prospect Ave, Hackensack, NJ 07601 · Bergen CountyPhone(551) 996-2000
Source: Dmand AI Affiliation Data
Dr. Ronald Fernandez is affiliated with 5 sites of care and 5 medical groups
Dr. Fernandez's primary practice is Hackensack University Medical Center in Hackensack, New Jersey, part of Hackensack Meridian Health. The medical group on file is Hackensack Meridian Medical Group. Dmand AI also links Dr. Fernandez to 4 more group practices and clinics and 4 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. Ronald Fernandez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fernandez practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hackensack University Medical Center | Available with a free account |
| +4 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Hackensack Meridian Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ronald Fernandez is one of 1,548 emergency medicine physicians in New Jersey
Emergency medicine is Dr. Fernandez's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Fernandez is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Fernandez
Counts of emergency medicine physicians 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. Ronald Fernandez billed Medicare for 291 services in 2024
CMS data shows 291 Medicare services from Dr. Fernandez across 3 procedure codes in 2024, for 293 Medicare patients. Medicare paid $40,007 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fernandez's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3882024: 29125%
Dr. Fernandez compared with the New Jersey median for emergency medicine physicians, 2024
- Dr. Fernandez
- New Jersey median
- Medicare services
- 291vs 32611% below
- Medicare patients
- 293vs 3219% below
- Part D claims
- 87vs 4785% above
Medians across 1,494 emergency medicine physicians in New Jersey with Dmand AI profiles that report each measure.
Dr. Fernandez'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald Fernandez treated 293 Medicare patients in 2024, average age 78
CMS counts 293 Medicare patients who saw Dr. Fernandez in 2024. The largest group is 75 to 84, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.50, 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. Fernandez's median patient age at 52, with 57% women.
Dr. Fernandez's Medicare patients by age, 2024
Dr. Fernandez's Medicare patients by sex, 2024
- Women16958%
- Men12442%
Chronic conditions among Dr. Fernandez's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Mood disorders56%
- Ischemic heart disease52%
- Anxiety47%
- Depression44%
- Diabetes44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fernandez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women57%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald Fernandez wrote 189 Medicare Part D claims in 2024
In 2024, Dr. Fernandez wrote 189 Medicare Part D claims for 125 patients. 96% of them were for generic drugs. CMS names the drug for 87 of them, across 5 drugs with 11 or more claims each, at $475 in total drug cost. In 2023, CMS named 80 claims across 5 drugs.
Dr. Fernandez's Part D claims by kind of drug, 2024
- Generic181 claims96%
- Brand-name and other8 claims4%
Dr. Fernandez'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. Fernandez's Part D claims, 2024
- Opioids12%23 of 189 claims
- Antibiotics26%49 of 189 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: 802024: 879%
Drugs named by CMS: 5 in 2024, 5 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
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Dr. Ronald Fernandez received $229 in industry payments from 2017 to 2023
CMS Open Payments shows 3 general payments to Dr. Fernandez from 3 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $111.
General payments to Dr. Fernandez by program year, 2017 to 2023
Companies that paid Dr. Fernandez the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ronald Fernandez graduated from Rutgers New Jersey Medical School
Dr. Fernandez graduated from Rutgers New Jersey Medical School in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald Fernandez'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) |
| 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. Ronald Fernandez
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. Ronald Fernandez's NPI number?
Dr. Ronald Fernandez's NPI number is 1942373345. It was assigned on November 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald Fernandez?
Dr. Ronald Fernandez is an emergency medicine physician in Hackensack, New Jersey. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Ronald Fernandez practice?
Dr. Fernandez practices at 30 Prospect Ave, Hackensack, NJ 07601. Dr. Fernandez's primary practice is Hackensack University Medical Center in Hackensack, New Jersey, part of Hackensack Meridian Health. Dmand AI also links Dr. Fernandez to 4 group practices and clinics and 4 medical groups.
What is Dr. Ronald Fernandez's office phone number?
The practice phone on file for Dr. Fernandez is (551) 996-2000.
What is Dr. Ronald Fernandez's medical license number?
Dr. Fernandez holds New York license 232439.
Which hospitals is Dr. Ronald Fernandez affiliated with?
Dr. Fernandez practices at Hackensack University Medical Center in Hackensack, New Jersey.
What medical group is Dr. Ronald Fernandez part of?
Dr. Fernandez is linked to Hackensack Meridian Medical Group. Dmand AI links Dr. Fernandez to 4 more medical groups.
Does Dr. Ronald Fernandez accept Medicare?
Yes. CMS data shows Dr. Fernandez billed Medicare for 291 services in 2024.
How many Medicare patients does Dr. Ronald Fernandez see?
CMS counts 293 Medicare patients who saw Dr. Fernandez in 2024, with an average age of 78.
What services does Dr. Ronald Fernandez bill to Medicare?
In 2024, Dr. Fernandez's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Show 4 more questionsShow fewer questions
Where did Dr. Ronald Fernandez go to medical school?
Dr. Fernandez graduated from Rutgers New Jersey Medical School in 2001.
What drugs does Dr. Ronald Fernandez prescribe most?
In 2024 Medicare Part D data, Dr. Fernandez's most prescribed drugs by claims were Ondansetron ODT, Prednisone and Cephalexin.
Has Dr. Ronald Fernandez received payments from drug or device companies?
CMS Open Payments shows $229 in general payments to Dr. Fernandez from 3 companies from 2017 to 2023. The largest total came from Mallinckrodt LLC.
How long has Dr. Ronald Fernandez been practicing?
Dr. Fernandez graduated from medical school in 2001, 25 years ago.
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