DR. FLORENCE HOLLIDAY PORTERFIELD MD
NPI 1538745583
Internal Medicine in Boston, MA
About Dr. Florence Holliday Porterfield Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. FLORENCE HOLLIDAY PORTERFIELD MD (NPI 1538745583) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (1022635) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2021).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Florence Holliday Porterfield Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Florence Porterfield's NPI number?
The NPI number for Florence Porterfield is 1538745583. It was assigned to this individual provider in the NPPES registry on March 21, 2021.
Where is Florence Porterfield located?
Florence Porterfield practices at 50 Staniford St # S5004430, Boston, MA 02114. The listed phone number is (617) 726-4400.
What is Florence Porterfield's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Florence Porterfield enrolled in Medicare?
Yes. Florence Porterfield is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is Florence Porterfield affiliated with any hospitals?
According to CMS data, Florence Porterfield is affiliated with North Shore Medical Center - and Massachusetts General Hospital.
When was this NPI record last updated?
The NPPES record for Florence Porterfield was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Florence Holliday Porterfield, MD · NPI 1538745583
Internal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 21, 2021.
## Identity
- **NPI:** 1538745583 (Entity type: Individual)
- **Enumerated:** March 21, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1022635 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 50 STANIFORD ST # S5004430, Boston, MA 02114-2517
- **Phone:** (617) 726-4400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2021
## Record status
- **NPPES last updated:** July 31, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1538745583) · Data from the CMS NPPES public registry.