Dr. Fanni Ratzon, MD
- Medicare services, 2024
- 2,382
- Medicare patients, 2024
- 711
- MIPS score, 2024
- 87
- Hospital affiliations
- 3
- Medical groups
- 3
- Practice address
- 5 Perryridge Rd, Greenwich, CT 06830
- Practice phone
- Call (203) 863-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Fanni Ratzon is a pathologist in Greenwich, Connecticut
Dr. Ratzon practices at Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System.
Dr. Ratzon's NPI, 1316332752, was assigned on April 2, 2015. Dr. Ratzon graduated from Semmelweis University in 2001. Dr. Ratzon holds Connecticut license 79500.
- NPI
- 1316332752NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244577849
- NPI enumeration date
- April 2, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 863-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Fanni Ratzon practices at Greenwich Hospital in Greenwich, Connecticut
Dr. Ratzon's primary practice is Greenwich Hospital, at 5 Perryridge Rd, Greenwich, CT 06830 in Fairfield County. The practice phone is (203) 863-3000.
- Greenwich Hospital5 Perryridge Rd, Greenwich, CT 06830 · Fairfield CountyPhone(203) 863-3000
Source: Dmand AI Affiliation Data
Dr. Fanni Ratzon is affiliated with 4 sites of care and 3 medical groups
Dr. Ratzon's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dr. Ratzon is also affiliated with Yale New Haven Hospital. The medical group on file is Greenwich Hospital. Dmand AI also links Dr. Ratzon to 1 more hospital, 2 medical groups and 1 group practice or clinic, 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. Fanni Ratzon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ratzon practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greenwich Hospital | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fanni Ratzon is one of 157 pathologists in Connecticut
Anatomic pathology and clinical pathology is Dr. Ratzon's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dmand AI has Dr. Ratzon's licenses on file in 2 states: Connecticut and New Jersey.
Specialties and state licenses
- Anatomic pathology and clinical pathology, ConnecticutPrimary
- New Jersey license
Pathologists near Dr. Ratzon
Counts of pathologists 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. Fanni Ratzon billed Medicare for 2,382 services in 2024
CMS data shows 2,382 Medicare services from Dr. Ratzon across 24 procedure codes in 2024, for 711 Medicare patients. Medicare paid $72,627 for them.
Dr. Ratzon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,0692024: 2,36214%
- Surgery
- 2023: 172024: 2018%
Where Dr. Ratzon's Medicare services took place, 2024
- In an office773%
- In a facility2,30597%
Dr. Ratzon compared with the Connecticut median for pathologists, 2024
- Dr. Ratzon
- Connecticut median
- Medicare services
- 2,382vs 9842.4 times
- Medicare patients
- 711vs 36296% above
Medians across 163 pathologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Ratzon'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. Ratzon and other pathologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fanni Ratzon treated 711 Medicare patients in 2024, average age 75
CMS counts 711 Medicare patients who saw Dr. Ratzon in 2024. The largest group is 65 to 74, with 332 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ratzon's median patient age at 65, with 61% women.
Dr. Ratzon's Medicare patients by age, 2024
Dr. Ratzon's Medicare patients by sex, 2024
- Women44863%
- Men26337%
Chronic conditions among Dr. Ratzon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes37%
- Cancer34%
- Ischemic heart disease34%
- Anxiety26%
- Mood disorders23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ratzon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women61%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Fanni Ratzon scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Ratzon for performance year 2024, reported as part of a group. Dr. Ratzon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ratzon's MIPS scores, performance year 2024
- 87of 100Final score
- 73.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Fanni Ratzon graduated from Semmelweis University
Dr. Ratzon graduated from Semmelweis University in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Fanni Ratzon'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Fanni Ratzon
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. Fanni Ratzon's NPI number?
Dr. Fanni Ratzon's NPI number is 1316332752. It was assigned on April 2, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Fanni Ratzon?
Dr. Fanni Ratzon is a pathologist in Greenwich, Connecticut. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Fanni Ratzon practice?
Dr. Ratzon practices at 5 Perryridge Rd, Greenwich, CT 06830. Dr. Ratzon's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dmand AI also links Dr. Ratzon to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Fanni Ratzon's office phone number?
The practice phone on file for Dr. Ratzon is (203) 863-3000.
What is Dr. Fanni Ratzon's medical license number?
Dr. Ratzon holds Connecticut license 79500, one of the licenses on file in 2 states.
Which states has Dr. Fanni Ratzon been licensed in?
Dmand AI has state licenses on file for Dr. Ratzon in Connecticut and New Jersey.
Which hospitals is Dr. Fanni Ratzon affiliated with?
Dr. Ratzon practices at Greenwich Hospital in Greenwich, Connecticut. Dr. Ratzon is also affiliated with Yale New Haven Hospital. Dmand AI links Dr. Ratzon to 1 more hospital.
What medical group is Dr. Fanni Ratzon part of?
Dr. Ratzon is linked to Greenwich Hospital. Dmand AI links Dr. Ratzon to 2 more medical groups.
Does Dr. Fanni Ratzon accept Medicare?
Yes. CMS data shows Dr. Ratzon billed Medicare for 2,382 services in 2024, and Dr. Ratzon accepts Medicare assignment.
What is Dr. Fanni Ratzon's MIPS score?
Dr. Ratzon's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 4 more questionsShow fewer questions
How many Medicare patients does Dr. Fanni Ratzon see?
CMS counts 711 Medicare patients who saw Dr. Ratzon in 2024, with an average age of 75.
What services does Dr. Fanni Ratzon bill to Medicare?
In 2024, Dr. Ratzon's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88312).
Where did Dr. Fanni Ratzon go to medical school?
Dr. Ratzon graduated from Semmelweis University in 2001.
How long has Dr. Fanni Ratzon been practicing?
Dr. Ratzon graduated from medical school in 2001, 25 years ago.
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