DR. WALTER MATTHEW III RYAN (DO) – Allergy & Immunology (Internal Medicine) Physician, NPI 1073503843

DR. WALTER MATTHEW III RYAN (DO) is a healthcare provider. based in Plantation, Florida. specializing in ALLERGY/IMMUNOLOGY. They hold the professional credentials DO. They hold a License No. OS10177 (FL). The NPI Number for DR. WALTER MATTHEW III RYAN (DO) is 1073503843

Main info

Male
Sole Proprietor
33 Years Of Experience
Accepts Medicare Assignment
Name
DR. WALTER MATTHEW III RYAN (DO)
NPI
1073503843
Phone
(954) 472-4848
Address
350 NW 84th Ave
Enumeration Date
24 October 2005
Last Update Date
4 August 2023

Doctor Profile

Medical School Name
OTHER
Secondary Phone
5613928832
Graduation Year
1993 (33 years ago)
PAC ID
8729177043
Group Practice PAC ID
2365340908
Professional Enrollment ID
I20071208000224
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience78
Completeness75
Years active:20State licenses:2Digital endpointsOther names

274 ALLERGY/IMMUNOLOGY in FL

Provider Addresses for DR. WALTER MATTHEW III RYAN (DO)

  • 350 NW 84th Ave

    Suite 205

    Plantation, FL 333241817

    Phone: (954) 472-4848

    Fax: (954) 472-8500

    Type: Location

  • 11880, Southwest 40th Street, Miami-Dade County, Florida, 33175, United States

    SUITE 304

    MIAMI, FL 331753584

    Phone: (305) 223-8808

    Fax: (305) 223-8974

    Type: Mailing

  • 350, Northwest 84th Avenue, Plantation, Broward County, Florida, 33324, United States

    SUITE 205

    PLANTATION, FL 333241817

    Phone: (954) 472-4848

    Fax: (954) 472-8500

    Type: Location

  • 2300 SOUTHWOOD DR

    NASHUA, NH 030631818

    Phone: (603) 577-4000

    Type: Location

  • PO BOX 810

    HANOVER, NH 037550810

    Phone: (603) 308-1453

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 36 Open Payments records for all available years, with a total value of $922.

Total Amount is formed as General ($922) + Research ($0) + Ownership ($0) = $922.

Last reported payment date: 2024-02-22 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($245).

Total Amount

$922

General + Research + Ownership

Payments

36

Total payment records

General Amount

$922

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-02-22

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2023-08-28

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20071208000224IAllergy/ImmunologyFLTBD
I20230828000909IAllergy/ImmunologyNHTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
95165Professional service for preparation and provision of 1 or more antigens61226$0
95117Professional service for multiple injections of allergen25869$0
94010Test to measure expiratory airflow and volume8247$0
99215Established patient office or other outpatient visit, 40-54 minutes7357$0
99214Established patient office or other outpatient visit, 30-39 minutes5735$0
View full utilization report →

Insurance plans in this area (ZIP 33324)

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Provider's Procedures

DR. WALTER MATTHEW III RYAN (DO) performs procedures in ALLERGY/IMMUNOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ALLERGY/IMMUNOLOGYFL95004Injection of allergenic extracts into skin, accessed through the skin112117
ALLERGY/IMMUNOLOGYFL95117Injection of incremental dosages of allergen, 2 or more injections37546

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 2365340908View full group profile
NameSpecialtyState
Nurse PractitionerFL
Allergy/Immunology, Internal MedicineFL
Allergy/Immunology, Internal MedicineFL
Physician AssistantFL
Allergy/Immunology, Pediatric MedicineNJ
Nurse PractitionerFL
-FL
Allergy/Immunology, Pediatric MedicineFL
Allergy/Immunology, Pediatric MedicineFL
Nurse PractitionerFL

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Frequently asked questions

What number should I use to identify DR. WALTER MATTHEW III RYAN (DO) for billing?
Administrative and clinical systems typically use NPI 1073503843 for DR. WALTER MATTHEW III RYAN (DO).
Does the public listing show DR. WALTER MATTHEW III RYAN (DO) as active?
DR. WALTER MATTHEW III RYAN (DO)'s NPI record reflects an active status in NPPES.
What type of care does DR. WALTER MATTHEW III RYAN (DO) provide?
DR. WALTER MATTHEW III RYAN (DO)'s profile centers on Allergy & Immunology (Internal Medicine) Physician. Clinical services aligned with this taxonomy classification.
Can patients visit DR. WALTER MATTHEW III RYAN (DO) in Plantation, Florida?
For routing, start with Plantation, Florida for DR. WALTER MATTHEW III RYAN (DO), then verify phone and hours locally.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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