Dr. Harold S. Nelson, MD

(Harold S Nelson, MD)

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Specializes in: Adult Allergy & Immunology and General Practice

1400 JACKSON STREET
DENVER, CO 80206

1-877-359-0396

Dr. Harold S. Nelson, MD is an allergist in DENVER, CO specializing in adult allergy & immunology and general practice. Dr. Harold S. Nelson, MD is affiliated with National Jewish Health and Main Campus.

Office Locations

1400 JACKSON STREET
DENVER, CO 80206

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In The News (see more mentions in the news)

“It's difficult to estimate how many people suffer ill effects from fragrances, says Dr. Harold Nelson of the National Jewish Center for Immunology and Respiratory Medicine in Denver.”—"Scents of Trouble : For the Sensitive, Fragrances Can Trigger Problems", Los Angeles Times, May 2025

“It's a complex response, but one part of what's going on when you take the shots or tablets is your body can produce regulatory cells "that suppress the immune response," explains Harold Nelson, an...”—"Seasonal Sniffles? Immunotherapy Tablets Catch On As An Alternative To Allergy Shots", NPR, April 2019

“Dr. Harold Nelson, an allergist at National Jewish Health in Denver, said that the body of evidence indicates that sublingual immunotherapy beats antihistamines and other medications used to...”—"Oral Alternative to Allergy Shots Improves Hay Fever", Fox News, March 2015

Education & Training

He completed residency at Letterman Army Medical Center. He is certified by the American Board of Allergy and Immunology and has a state license in Colorado.

Residency: Letterman Army Medical Center (1962)

Board Certification: American Board of Allergy and Immunology

Licensed In: Colorado

Affiliations & Hospitals

Dr. Harold S. Nelson, MD is associated with these hospitals and organizations:

National Jewish Health

Main Campus

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General Payments

These charts describe general payments received by Dr. Harold S. Nelson, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Merck Sharp & Dohme Corporation	$47,849 GRASTEK $14,070	RAGWITEK $12,630	NON-PRODUCT $9,753	MK-8237 $5,088	ASMANEX Respiratory $3,150	Other $3,160
Alk-Abello, Inc	$11,897 Odactra $7,097	$4,800
AstraZeneca Pharmaceuticals LP	$8,851 FASENRA $2,105	TEZSPIRE $268	$6,479
AstraZeneca UK Limited	$4,783 FASENRA $4,783
GlaxoSmithKline, LLC.	$1,102 NUCALA $2	$1,100
Other	$838 PROAIR $157	Xembify $146	Orladeyo $122	QVAR $113	DUPIXENT $102	Other $198

**Types of Payments**
Consulting Fee	$55,965
Travel and Lodging	$9,453
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,050
Food and Beverage	$2,453
Honoraria	$2,400

Research Payments

Dr. Harold S. Nelson, MD has received 15 research payments totaling $10,817.

Biography

Dr. Harold Nelson's medical specialty is general practice and adult allergy & immunology. His areas of expertise consist of asthma and allergies. Dr. Nelson's residency was performed at Letterman Army Medical Center. Distinctions awarded to Dr. Nelson include: National Jewish Health: 2006: Life-time Achievement Award 2005: Teacher of the Year Award and World Allergy Organization: 2007: Outstanding Clinician Award. Dr. Nelson is affiliated with National Jewish Health.