Ruth Ratzan, MD
NPI 1851316848 · Hematology & Oncology Physician · Miami, FL
Ruth Ratzan, MD is a Hematology & Oncology Physician provider in Miami, FL (NPI 1851316848).
Provider details
- NPI number
- 1851316848
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- ME19501 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2011-11-15
Frequently asked questions
- What is Ruth Ratzan's NPI number?
- Ruth Ratzan's National Provider Identifier (NPI) is 1851316848, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Ratzan's specialty?
- Ruth Ratzan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Ratzan located?
- Ruth Ratzan's practice location on file with NPPES is 1611 Nw 12th Ave, Miami, FL 33136-1005.
- What is Ruth Ratzan's phone number?
- The practice phone number listed in the NPPES registry for Ruth Ratzan is (305) 243-1000.
- Is Ruth Ratzan's NPI active?
- Yes — Ruth Ratzan's NPI (1851316848) is active in the NPPES registry as of the last update on 2011-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.