Nathan Colbert Showalter, PA-C
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 334
- Industry payments
- $288
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 1435 G St, Springfield, OR 97477
- Practice phone
- Call (541) 735-9420
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
G Street Integrated Health
Urgent Care Center · Springfield, Oregon
Find Nathan Showalter's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Nathan Colbert Showalter is a physician assistant in Springfield, Oregon
Nathan Showalter practices at G Street Integrated Health in Springfield, Oregon.
Nathan Showalter's NPI, 1427787746, was assigned on June 10, 2022. Nathan Showalter holds Oregon license PA218346.
- NPI
- 1427787746NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416399803
- NPI enumeration date
- June 10, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (541) 735-9420
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nathan Colbert Showalter practices at G Street Integrated Health in Springfield, Oregon
Nathan Showalter's primary practice is G Street Integrated Health, at 1435 G St, Springfield, OR 97477. The practice phone is (541) 735-9420.
- G Street Integrated Health1435 G St, Springfield, OR 97477Phone(541) 735-9420
Source: Dmand AI Affiliation Data
Nathan Colbert Showalter is affiliated with 2 sites of care and 1 medical group
Nathan Showalter's primary practice is G Street Integrated Health in Springfield, Oregon. The medical group on file is G Street Integrated Health. Dmand AI also links Nathan Showalter to 1 more group practice or clinic, named with a free account. Nathan Showalter's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Nathan Colbert Showalter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nathan Showalter practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| G Street Integrated Health | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Nathan Colbert Showalter is one of 1,937 physician assistants in Oregon
Physician assistant is Nathan Showalter's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Nathan Showalter's licenses on file in 2 states: Oregon and Idaho.
Specialties and state licenses
- Physician assistant, OregonPrimary
- Idaho license
Physician assistants near Nathan Showalter
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Nathan Colbert Showalter treated 13 Medicare patients in 2024, average age 62
CMS counts 13 Medicare patients who saw Nathan Showalter in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 0.66, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nathan Showalter's median patient age at 39, with 33% women.
Nathan Showalter's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Nathan Showalter's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Nathan Colbert Showalter wrote 334 Medicare Part D claims in 2024
In 2024, Nathan Showalter wrote 334 Medicare Part D claims for 59 patients. 89% of them were for generic drugs.
Nathan Showalter's Part D claims by kind of drug, 2024
- Generic298 claims89%
- Brand-name and other36 claims11%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Nathan Colbert Showalter takes part in Medicare
Nathan Showalter accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Nathan Colbert Showalter received $288 in industry payments in 2025
CMS Open Payments shows 13 general payments to Nathan Showalter from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Exact Sciences Corporation paid the most, $79.
Companies that paid Nathan Showalter the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Nathan Colbert Showalter's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Nathan Colbert Showalter
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nathan Colbert Showalter's NPI number?
Nathan Colbert Showalter's NPI number is 1427787746. It was assigned on June 10, 2022, and it is active in the NPI Registry.
What does Nathan Colbert Showalter specialize in?
Nathan Colbert Showalter is a physician assistant in Springfield, Oregon. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Nathan Colbert Showalter practice?
Nathan Showalter practices at 1435 G St, Springfield, OR 97477. Nathan Showalter's primary practice is G Street Integrated Health in Springfield, Oregon. Dmand AI also links Nathan Showalter to 1 group practice or clinic.
What is Nathan Colbert Showalter's office phone number?
The practice phone on file for Nathan Showalter is (541) 735-9420.
What is Nathan Colbert Showalter's medical license number?
Nathan Showalter holds Oregon license PA218346, one of the licenses on file in 2 states.
Which states has Nathan Colbert Showalter been licensed in?
Dmand AI has state licenses on file for Nathan Showalter in Oregon and Idaho.
What medical group is Nathan Colbert Showalter part of?
Nathan Showalter is linked to G Street Integrated Health.
Does Nathan Colbert Showalter accept Medicare?
Yes. CMS lists Nathan Showalter as accepting Medicare assignment.
How many Medicare patients does Nathan Colbert Showalter see?
CMS counts 13 Medicare patients who saw Nathan Showalter in 2024, with an average age of 62.
Has Nathan Colbert Showalter received payments from drug or device companies?
CMS Open Payments shows $288 in general payments to Nathan Showalter from 6 companies from 2025 to 2025. The largest total came from Exact Sciences Corporation.
How long has Nathan Colbert Showalter been practicing?
Nathan Showalter graduated from medical school in 2023, 3 years ago.
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