Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Nathan Russell Ayer, MD, MPH

Individual provider Internal Medicine Physician · NPI 1457361172

Dr. Nathan Russell Ayer, MD, MPH is an Internal Medicine in Loveland, Colorado. Graduated from University of Rochester School of Medicine and Dentistry in 2001, 25 years ago. Practices with Poudre Valley Medical Group LLC, a 2,416-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado and Vermont.

Years since qualifying
25
Trained at
University of Rochester School of Medicine and Dentistry
Licensed in
CO, VT
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

2500 Rocky Mountain Ave North Medical Ofc Bldg
Loveland, CO 80538-9004
Phone: (970) 203-7050
Fax: (970) 203-7055
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence DR.0054301 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 042-00010678 (VT)

Record details

NPI number1457361172
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedAugust 8, 2006
Last updated in NPPESJuly 24, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 2001 (25 years in practice)
Group practice Poudre Valley Medical Group Llc — 2416 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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