Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1750334751 Individual Practitioner Male Practitioner

Dr. David Carter Redfern , MD

Allergy & Immunology • Waterloo, IA

Professional Overview & Biography Verified Profile Summary

Dr. David Redfern, MD is a registered healthcare professional specializing in Allergy & Immunology in Waterloo, IA. Practice services are available at 1753 W RIDGEWAY AVE under active NPI credentials.

Frequently performed procedures and clinical services include test for allergy using allergenic extract, professional service for preparation and provision of, injection of incremental dosages of allergen. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1753 W Ridgeway Ave
Ste 106

Waterloo, IA 507014588

Telephone 3198335982
Fax 3198335983
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Allergy & Immunology in Waterloo, IA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 9.0 Yrs
State Avg: 22.8 Yrs
Regional Practice Density
3 Specialists

Practicing in Waterloo, IA (34 Statewide)

Telehealth Adoption Rate
33.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
61.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2018)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
95004 Test for allergy using allergenic extract
2,154 59 $11.00 $4.49
95165 Professional service for preparation and provision of 1 or more antigens
935 40 $25.00 $11.92
95115 Injection of incremental dosages of allergen
239 26 $34.00 $7.87
95117 Professional service for multiple injections of allergen
194 28 $44.00 $9.16
95024 Injection of allergenic extracts into skin for immediate reaction analysis
142 20 $13.00 $6.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
59 59 $257.00 $97.77
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
46 43 $101.00 $40.83
99213 Established patient office or other outpatient visit, typically 15 minutes
46 43 $150.00 $68.32

Medical Specialties & State Licenses

Allergy & Immunology Primary Specialty

NUCC Taxonomy Code: 207K00000X

State License IA 30869

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
0132373 (IA)
Commercial Insurance / Payer ID John Deere Health Care
42141730749 (IA)
Commercial Insurance / Payer ID Wellmark Ins Plan
52489 (IA)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

15 Associated Practitioners
NPI 1003869397

Doctor of Medicine (M.D.)

Nicole Slater , ARNP

Nurse Practitioner

NPI 1134580657

Advanced Registered Nurse Practitioner

NPI 1215915483

Doctor of Medicine (M.D.)

Robin Pattison , ARNP

Nurse Practitioner

NPI 1235589656

Advanced Registered Nurse Practitioner

NPI 1285722041

Doctor of Audiology

Dr. Vinay Kantamneni , MD

Internal Medicine - Nephrology

NPI 1508811258

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active October 09, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location October 09, 2007

Registered at 1753 W RIDGEWAY AVE, STE 106, WATERLOO, IA 507014588 (Tel: 3198335982)

📍
Updated Business Mailing Address October 09, 2007

Registered at PO BOX 2758, WATERLOO, IA 507042758 (Tel: 3198335982)

👤
Provider Name / Credentials Updated October 09, 2007

Recorded as DAVID REDFERN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 09, 2007

Allergy & Immunology (License #30869 in IA)

🟢
Initial NPI Registration & Enumeration May 18, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1750334751
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 18, 2006
Last Update: October 09, 2007
Sole Proprietor: No

Mailing Address

Po Box 2758

Waterloo, IA 507042758

Phone: 3198335982

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.