MR. JONATHAN ELLIS WELKER PA-C
NPI 1770812588
Physician Assistant - Medical in Boulder, CO

Active since December 08, 2009PECOS EnrolledAccepts Medicare Assignment
4801 RIVERBEND RD STE 200, BOULDER, CO 80301(303) 415-8800(303) 415-8801 Get Directions Write a Review

NPPES record last updated: September 29, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 29, 2022, May 12, 2022, May 10, 2019 and 4 more (7 updates tracked since 2015).

About Mr. Jonathan Ellis Welker Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. JONATHAN ELLIS WELKER PA-C (NPI 1770812588) is an individual medical provider in Boulder, Colorado, licensed in Colorado (PA.0002934) and active in the NPI registry since December 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1770812588
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameMR. JONATHAN ELLIS WELKERCredential: PA-C
Location Address4801 RIVERBEND RD STE 200Boulder, CO 80301-2613
Mailing AddressPo Box 9049Boulder, CO 80301-9049 · (303) 415-8800 · Fax (303) 415-8801
Fax(303) 415-8801
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateDecember 8, 2009
Last NPPES UpdateSeptember 29, 20227 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2022
NPI 1770812588 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License Licensed in CO · PA.0002934
4801 RIVERBEND RD STE 200, Boulder, CO 80301

Other Names 1

Other Name (5)Jon Welker

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mr. Jonathan Ellis Welker Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244374924
PECOS Enrollment IDI20100218000487
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
123 services101 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
119 services105 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
23 services21 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
22 services22 patients

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Registered Nurse
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Clinic/Center (Medical Specialty)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301
Psychiatry & Neurology (Neurology)
4801 RIVERBEND RD STE 200
BOULDER, CO 80301

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jonathan Welker's NPI number?

The NPI number for Jonathan Welker is 1770812588. It was assigned to this individual provider in the NPPES registry on December 8, 2009. The provider is also known as Jon Welker.

Where is Jonathan Welker located?

Jonathan Welker practices at 4801 Riverbend Rd Ste 200, Boulder, CO 80301. The listed phone number is (303) 415-8800.

What is Jonathan Welker's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Jonathan Welker enrolled in Medicare?

Yes. Jonathan Welker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Jonathan Welker was last updated on September 29, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.