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Internal Medicine in Greeley, CO''' - Find a Doctor | Banner Health

Internal Medicine • Greeley, CO

About

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Clinic Type

Internal Medicine

Address

1801 16th Street, Greeley, CO 80631

Phone

970-810-3894

Email

Privacy@BannerHealth.com

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://doctors.bannerhealth.com/search?display_location=Greeley%2C+CO%27%27%27&location=40.4233142%2C-104.7091322&page=4&provider_fields=-clinical_keywords&search_alerts=false&shuffle_seed=c1aec4d1-1eab-4516-9f8a-5e095f22777e&sort=distance&specialty=Internal+Medicine

Emergency Care

Note: If you are experiencing chest pain, shortness of breath, or other life-threatening conditions, please call 911 or go to the ER.

Services Offered

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Team

Cecilia Hirsch, MD — MD
Jaclyn Summers, PA-C — PA-C
Maria Herrera, MD — MD
J. David Cowden, MD — MD
Melissa Garth, AGACNP — AGACNP
Samuel Shelanski, MD — MD
Mikal Pillatzke, FNP — FNP
Robin Lacour, MD — MD
Pamola Gale, FNP — FNP
Kelsey Shay, MD — MD
Christina Gamboa, MD — MD
Adrien Arling, PA-C — PA-C

Insurance & Payment

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Languages Spoken

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Social Media

Twitter Youtube Facebook Instagram

Photos

What Patients Say

Overall sentiment across review platforms: mixed

Birdeye (aggregating Google reviews): 3.9 out of 5 stars (59 reviews)

Patients praise

Staff members are often described as compassionate, professional, and respectful
Patients appreciate doctors who listen thoroughly and explain conditions clearly
Efficiency in communication systems, such as texts and emails, and generally clean clinic environments

Common complaints

Some patients report feeling invisible or uncared for during visits
Concerns over the lack of specialized care, specifically neurology or neuropsychology evaluations for certain conditions
Some frustration regarding medication refill policies and administrative communication

"The entire staff is punctual, appointment times are honored, exams are thorough, patients are listened to, it's one of my best offices to visit."

— Birdeye (Google review)

"With the exception of the front desk, I felt invisible and uncared for. If you have an obscure diagnosis as I do You may be disappointed in your experience here."

— Birdeye (Google review)

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

In the News

Internal Medicine - Find a Doctor | Banner Health — Feb 27, 2026
Dr. Nicolas C. Knauss, DO - Internal Medicine Physician in Greeley, CO — May 14, 2026
Dr. Edward C. Chen, DO - Internal Medicine Physician in Greeley, CO — May 10, 2026
Emerito Natanawan MD - Internal Medicine | Greeley, CO | UCHealth — Dec 22, 2021
Jason Whaley PA - Internal Medicine | Primary Care | Greeley | UCHealth — Apr 5, 2020

Information sourced from the clinic's website as of July 10, 2026.

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