Dr. Fernando Afonso, MD
- Medicare services, 2024
- 709
- Medicare patients, 2024
- 416
- Part D claims, 2024
- 163
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 24 Hospital Ave, Danbury, CT 06810
- Practice phone
- Call (203) 739-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Afonso's professional email, personal email and mobile number
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Dr. Fernando Afonso is an internist in Danbury, Connecticut
Dr. Afonso practices at Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health.
Dr. Afonso's NPI, 1992980536, was assigned on January 2, 2008. Dr. Afonso graduated from Ross University School of Medicine in 2007. Dr. Afonso holds Connecticut license 049205.
- NPI
- 1992980536NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678760006
- NPI enumeration date
- January 2, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 739-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Fernando Afonso practices at Northwell Danbury Hospital in Danbury, Connecticut
Dr. Afonso's primary practice is Northwell Danbury Hospital, at 24 Hospital Ave, Danbury, CT 06810 in Fairfield County. The practice phone is (203) 739-7000.
- Northwell Danbury Hospital24 Hospital Ave, Danbury, CT 06810 · Fairfield CountyPhone(203) 739-7000
Source: Dmand AI Affiliation Data
Dr. Fernando Afonso is affiliated with 3 sites of care and 1 medical group
Dr. Afonso's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. Dr. Afonso is also affiliated with Griffin Hospital. The medical group on file is Danbury Medical Group. Dmand AI also links Dr. Afonso to 1 more hospice, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Fernando Afonso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Afonso practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwell Danbury Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fernando Afonso is one of 2,189 internists in Connecticut
Internal medicine is Dr. Afonso's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Afonso is board certified in internal medicine by the American Board of Internal Medicine. Dr. Afonso is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, anemia, cardiac arrhythmia, cellulitis, congestive heart failure, electrolyte disorders and gastrointestinal bleeding among the conditions Dr. Afonso treats.
Internists near Dr. Afonso
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. Fernando Afonso billed Medicare for 709 services in 2024
CMS data shows 709 Medicare services from Dr. Afonso across 5 procedure codes in 2024, for 416 Medicare patients. Medicare paid $66,872 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Afonso compared with the Connecticut median for internists, 2024
- Dr. Afonso
- Connecticut median
- Medicare services
- 709vs 39082% above
- Medicare patients
- 416vs 1722.4 times
- Part D claims
- 50vs 34385% below
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Afonso'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Afonso and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fernando Afonso treated 416 Medicare patients in 2024, average age 79
CMS counts 416 Medicare patients who saw Dr. Afonso in 2024. The largest group is 85 and over, with 152 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 2.12, 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. Afonso's median patient age at 78, with 56% women.
Dr. Afonso's Medicare patients by age, 2024
Dr. Afonso's Medicare patients by sex, 2024
- Women23757%
- Men17943%
Chronic conditions among Dr. Afonso's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease51%
- Mood disorders46%
- Anxiety44%
- Chronic kidney disease44%
- Diabetes40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Afonso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women56%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Fernando Afonso wrote 163 Medicare Part D claims in 2024
In 2024, Dr. Afonso wrote 163 Medicare Part D claims for 80 patients. 90% of them were for generic drugs. CMS names the drug for 50 of them, across 4 drugs with 11 or more claims each, at $7,629 in total drug cost.
Dr. Afonso's Part D claims by kind of drug, 2024
- Generic147 claims90%
- Brand-name16 claims10%
Dr. Afonso'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. Afonso's Part D claims, 2024
- Antibiotics28%46 of 163 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Fernando Afonso takes part in Medicare
Dr. Afonso 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. Fernando Afonso graduated from Ross University School of Medicine
Dr. Afonso graduated from Ross University School of Medicine in 2007.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Fernando Afonso accepts plans from 4 insurance carriers
Dr. Afonso is in network with 4 carriers, including Excellus BlueCross BlueShield, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- HCSC
- CMS Medicare
- NY State Medicaid
Plan types Dr. Afonso accepts, by number of carriers
- Medicare3
- PPO2
- EPO1
- HMO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Fernando Afonso'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) |
| 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. Fernando Afonso
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. Fernando Afonso's NPI number?
Dr. Fernando Afonso's NPI number is 1992980536. It was assigned on January 2, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Fernando Afonso?
Dr. Fernando Afonso is an internist in Danbury, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Fernando Afonso practice?
Dr. Afonso practices at 24 Hospital Ave, Danbury, CT 06810. Dr. Afonso's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. Dmand AI also links Dr. Afonso to 1 hospice.
What is Dr. Fernando Afonso's office phone number?
The practice phone on file for Dr. Afonso is (203) 739-7000.
What is Dr. Fernando Afonso's medical license number?
Dr. Afonso holds Connecticut license 049205.
Which hospitals is Dr. Fernando Afonso affiliated with?
Dr. Afonso practices at Northwell Danbury Hospital in Danbury, Connecticut. Dr. Afonso is also affiliated with Griffin Hospital.
What medical group is Dr. Fernando Afonso part of?
Dr. Afonso is linked to Danbury Medical Group.
Does Dr. Fernando Afonso accept Medicare?
Yes. CMS data shows Dr. Afonso billed Medicare for 709 services in 2024, and Dr. Afonso accepts Medicare assignment.
How many Medicare patients does Dr. Fernando Afonso see?
CMS counts 416 Medicare patients who saw Dr. Afonso in 2024, with an average age of 79.
Is Dr. Fernando Afonso board certified?
Yes. Dr. Afonso is board certified in internal medicine by the American Board of Internal Medicine.
Show 5 more questionsShow fewer questions
What services does Dr. Fernando Afonso bill to Medicare?
In 2024, Dr. Afonso's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. Fernando Afonso go to medical school?
Dr. Afonso graduated from Ross University School of Medicine in 2007.
What drugs does Dr. Fernando Afonso prescribe most?
In 2024 Medicare Part D data, Dr. Afonso's most prescribed drugs by claims were Furosemide, Cefpodoxime Proxetil and Eliquis.
How long has Dr. Fernando Afonso been practicing?
Dr. Afonso graduated from medical school in 2007, 19 years ago.
What insurance does Dr. Fernando Afonso accept?
Dr. Afonso is in network with 4 carriers, including Excellus BlueCross BlueShield, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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