DR. WILLIAM B. GROW M.D.
NPI 1407804578
Internal Medicine - Medical Oncology in Winter Park, FL
About Dr. William B. Grow M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM B. GROW M.D. (NPI 1407804578) is an individual medical oncology provider in Winter Park, Florida, licensed in Florida (ME74899) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Orlando, and maintains a secondary practice location in Orlando.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William B. Grow M.d. 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.
Medicare Billing Reassignment
Medicare enrollment records show William Grow reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cape Coral, FL 33914
- Reassigned Medicare billing, Florida enrollment
- 880 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 51
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventhealth Orlando
Acute Care Hospitals · Orlando, FLAdventhealth Deland
Acute Care Hospitals · Deland, FLAdventhealth Waterman
Acute Care Hospitals · Tavares, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 32789 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WINTER PARK, FL 32789
WINTER PARK, FL 32789
WINTER PARK, FL 32789
WINTER PARK, FL 32789
WINTER PARK, FL 32789
WINTER PARK, FL 32789
WINTER PARK, FL 32789
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 William Grow's NPI number?
The NPI number for William Grow is 1407804578. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is William Grow located?
William Grow practices at 460 N Orlando Ave Ste 200 Bldg D, Winter Park, FL 32789. The listed phone number is (407) 898-5452.
What is William Grow's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is William Grow enrolled in Medicare?
Yes. William Grow 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.
Which organization bills Medicare for William Grow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Grow reassigns Medicare benefits to Florida Cancer Specialists & Research Institute, LLC (Cape Coral, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Grow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Grow accept?
Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Ambetter of Alabama, AmeriHealth Caritas Next and AvMed and 5 other insurers list William Grow as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is William Grow affiliated with any hospitals?
According to CMS data, William Grow is affiliated with Adventhealth Orlando, Adventhealth Deland and Adventhealth Waterman.
When was this NPI record last updated?
The NPPES record for William Grow was last updated on September 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.