Fanni Ratzon, MD
Anatomic Pathology & Clinical Pathology Physician · Greenwich, CT
Fanni Ratzon, MD is an anatomic pathology & clinical pathology physician with a practice address in Greenwich, Connecticut, and NPI 1316332752, issued on Apr 2, 2015. Check the license (Connecticut 79500, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Fanni Ratzon
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License numbers
- 79500 CT
25MA11155700 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 5 Perryridge RD, Greenwich, CT 06830
- Phone
- (203) 785-7037
- Enumerated
- Apr 2, 2015
- Record last updated
- Oct 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20241023001664); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 212 in Connecticut → Look up another NPI →
Also registered at 5 Perryridge RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tena AbrahamPharmacist1649838905
- Hanief Abrahams, M.D.Anesthesiology Physician1497798235
- Diana Adams, M.D.Maternal & Fetal Medicine Physician1255300653
- Saheeb AhmedStudent in an Organized Health Care Education/Training Program1326626748
- Rachel Alfandre, LCSWClinical Social Worker1497077259
- Vicki Altmeyer, M.D.Anatomic Pathology & Clinical Pathology Physician1700807898
Verify Fanni Ratzon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 79500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 90.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Greenwich Pathology Associates LLCGreenwich, CT
- Premier Medical Group OF The Hudson Valley PCPoughkeepsie, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Fanni Ratzon among 212 anatomic pathology & clinical pathology physician records in Connecticut
Fanni Ratzon, MD is one of 212 anatomic pathology & clinical pathology physician records with a practice address in Connecticut. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.
- NPI issued2015 · 80% of these records are older, 14% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2001 · median 1999 among the 132 with a school on file
- Record last updated2024 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Connecticut
There are 212 anatomic pathology & clinical pathology physician records in Connecticut.
All 212 in Connecticut → Every provider in Greenwich → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Vicki Altmeyer, M.D.Greenwich, CT 068301700807898
- Eric Diamond, M.D.Greenwich, CT 068301063435584
- Stephen Gray, M.D.Greenwich, CT 068301093739179
- Michael Miller, MDGreenwich, CT 068301730168394
- Kisha Mitchell Richards, M.D.Greenwich, CT 068301053526053
- Patricia Raciti, M.D.Greenwich, CT 068301730475963
- Deborah August, M.D.Norwalk, CT 068501801871504
- Frank Braza, M.D.Danbury, CT 068101851351860
Common questions
What is Fanni Ratzon, MD's NPI number?
Fanni Ratzon, MD's National Provider Identifier (NPI) is 1316332752, issued on Apr 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Fanni Ratzon, MD located?
The NPPES record lists a practice address at 5 Perryridge RD, Greenwich, CT, 06830. Phone: (203) 785-7037. Providers update this record themselves, so call before visiting.
How can I verify Fanni Ratzon, MD's license?
NPPES lists Connecticut license number 79500, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Fanni Ratzon, MD's MIPS final score?
The 2023 MIPS final score is 90.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.