Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Aaron Lee Walsdorf , FNP

Nurse Practitioner โ€ข Spokane, WA

Active NPI 1689441594 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3124 S Regal St
Spokane, WA 992234704

Call 5094646208 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3124 S Regal St

Spokane, WA 992234704

Telephone 5094646208
Fax 8883161928
Organization at the Same NPPES Address or Phone
Northwest Spine And Pain Medicine, Pllc Facility NPI 1669789228

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Northwest Spine And Pain Medicine Pllc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2023

Medicare patients

112 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $39,850 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $33,326 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

1,277 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$75,379 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $1,294.85 across 27 records.

By nature of payment

  • Food and Beverage: $896.22 across 26 records.
  • Travel and Lodging: $398.63 across 1 record.

Reporting-company totals (3 largest of 5)

  • Saluda Medical Americas, Inc.: $983.05 across 7 records.
  • Collegium Pharmaceutical, Inc.: $190.26 across 14 records.
  • Salix Pharmaceuticals, a division of Bausch Health US, LLC: $52.60 across 3 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

3 years (graduated 2023)

CMS Doctors and Clinicians data list 2023 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2023

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Aaron Walsdorf has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Aaron Walsdorf as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Spokane and Washington

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 65% of clinicians listed under Nurse Practitioner in Spokane, WA (2024, 67 clinicians with data). Median for this group: 293. Middle half: 96 to 467.

More Medicare Part B services than 65% of clinicians listed under Nurse Practitioner in Washington (2024, 893 clinicians with data). Median for this group: 234. Middle half: 84 to 502.

Medicare-allowed amount

A higher Medicare-allowed amount than 70% of clinicians listed under Nurse Practitioner in Spokane, WA (2024, 67 clinicians with data). Median for this group: $26,630. Middle half: $11,794 to $41,570.

A higher Medicare-allowed amount than 75% of clinicians listed under Nurse Practitioner in Washington (2024, 893 clinicians with data). Median for this group: $18,362. Middle half: $7,179 to $35,594.

Paid by Medicare

A higher Medicare payment amount than 75% of clinicians listed under Nurse Practitioner in Spokane, WA (2024, 67 clinicians with data). Median for this group: $18,923. Middle half: $9,146 to $30,487.

A higher Medicare payment amount than 80% of clinicians listed under Nurse Practitioner in Washington (2024, 893 clinicians with data). Median for this group: $13,803. Middle half: $5,221 to $25,979.

Medicare Part D prescriptions

More Part D prescriptions than 75% of clinicians listed under Nurse Practitioner in Spokane, WA (2024, 99 clinicians with data). Median for this group: 396. Middle half: 141 to 1,222.

More Part D prescriptions than 80% of clinicians listed under Nurse Practitioner in Washington (2024, 1,099 clinicians with data). Median for this group: 277. Middle half: 74 to 877.

Part D drug cost

A higher Part D drug cost than 65% of clinicians listed under Nurse Practitioner in Spokane, WA (2024, 99 clinicians with data). Median for this group: $10,897. Middle half: $1,399 to $119,301.

A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Washington (2024, 1,099 clinicians with data). Median for this group: $11,694. Middle half: $1,114 to $110,470.

188 active clinicians are listed under Nurse Practitioner with a practice address in Spokane, WA (2,310 in Washington).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Spokane

13.8% of these 188 clinicians have the CMS telehealth indicator.

55.9% of these 188 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 27 records totaling $1,294.85.

Manufacturer Payment Nature Product Type Amount ($)
Saluda Medical Americas, Inc.
Travel and Lodging
In-kind items and services
Evoke General $398.63
Saluda Medical Americas, Inc.
Food and Beverage
In-kind items and services
Evoke General $204.73
Saluda Medical Americas, Inc.
Food and Beverage
In-kind items and services
Evoke General $147.03
Saluda Medical Americas, Inc.
Food and Beverage
In-kind items and services
Evoke General $147.03
Saluda Medical Americas, Inc.
Food and Beverage
In-kind items and services
Evoke General $34.25
ABBVIE INC.
Food and Beverage
In-kind items and services
QULIPTA General $26.62
Saluda Medical Americas, Inc.
Food and Beverage
In-kind items and services
Evoke General $25.69
Saluda Medical Americas, Inc.
Food and Beverage
In-kind items and services
Evoke General $25.69
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $23.72
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $23.71
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $23.11
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $22.85
BIOTRONIK NRO, Inc.
Food and Beverage
In-kind items and services
Prospera General $21.75
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Food and Beverage
In-kind items and services
RELISTOR General $20.74
BIOTRONIK NRO, Inc.
Food and Beverage
In-kind items and services
Prospera General $20.57
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $20.16
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Food and Beverage
In-kind items and services
RELISTOR General $16.49
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Food and Beverage
In-kind items and services
RELISTOR General $15.37
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $11.60
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
XTAMPZA General $10.85
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
XTAMPZA General $9.86
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $9.70
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $7.92
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $7.51
Collegium Pharmaceutical, Inc.
Food and Beverage
Cash or cash equivalent
Belbuca General $6.95

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
234 62 $319.87 $107.09
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
82 58 $226.94 $76.26
80307 Testing for presence of drug, by chemistry analyzers
54 36 $250.00 $60.23
G0480 Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms
38 27 $235.30 $112.14
99484 Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional
22 17 $136.80 $46.53

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 225 5,845 $6,102.91 73
Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen 151 3,958 $4,191.89 39
Oxycodone Hcl Oxycodone Hcl 111 2,858 $1,589.18 28
Morphine Sulfate Er Morphine Sulfate 79 2,074 $2,138.55 24
Gabapentin Gabapentin 63 1,840 $630.66 21
Methadone Hcl Methadone Hcl 59 1,607 $797.60 11
Cyclobenzaprine Hcl Cyclobenzaprine Hcl 50 1,525 $647.38 17
Pregabalin Pregabalin 49 1,374 $3,754.92 19
Buprenorphine Buprenorphine 48 1,306 $9,304.73 15
Methocarbamol Methocarbamol 46 1,353 $599.14 18
Tizanidine Hcl Tizanidine Hcl 42 1,172 $687.73 16
Tramadol Hcl Tramadol Hcl 35 918 $168.88 15
Baclofen Baclofen 34 1,203 $532.13 13
Fentanyl Fentanyl 34 926 $4,910.39 โ€”
Morphine Sulfate Morphine Sulfate 31 836 $425.42 11
Xtampza Er Oxycodone Myristate 30 776 $12,322.49 โ€”
Oxycontin Oxycodone Hcl 28 720 $15,467.94 โ€”
Meloxicam Meloxicam 23 810 $48.15 โ€”
Naloxone Hcl Naloxone Hcl 23 141 $1,285.43 23
Hydromorphone Hcl Hydromorphone Hcl 20 427 $290.90 โ€”
Hydroxyzine Hcl Hydroxyzine Hcl 19 540 $189.01 โ€”
Belbuca Buprenorphine Hcl 16 423 $7,642.48 โ€”
Lidocaine Lidocaine 14 450 $1,354.00 โ€”
Duloxetine Hcl Duloxetine Hcl 13 351 $223.58 โ€”
Celecoxib Celecoxib 11 326 $73.62 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-06-11
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES WA F11230750

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Washington State Department of Health Provider Lookup.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20240322002833

Enrollment State Jurisdiction

WA

PECOS Control ID

8022455278

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Northwest Spine And Pain Medicine Pllc

3124 S Regal St, Spokane, WA 992234733

Phone: 5094646208

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

19 listed
Michelle Brothers , ARNP

Nurse Practitioner

NPI 1710537667

Advanced Registered Nurse Practitioner

Mark Christensen , PT

Physical Therapist

NPI 1356096309

Physical Therapist

NPI 1730264334

Doctor of Psychology (Psy.D.)

James Foster , MSN, NP

Physical Medicine & Rehabilitation - Pain Medicine

NPI 1609387083

Master of Science in Nursing, Nurse Practitioner

Andrew Garten , PA

Physician Assistant

NPI 1689059164

Physician Assistant

Dr. John Gilmer , MD

Physical Medicine & Rehabilitation - Pain Medicine

NPI 1477172716

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
๐Ÿ“
Updated Practice Location June 11, 2024

Registered at 3124 S REGAL ST, SPOKANE, WA 992234704 (Tel: 5094646208)

๐Ÿ“
Updated Business Mailing Address June 11, 2024

Registered at PO BOX 112, SPOKANE, WA 992100112 (Tel: 5094646208)

โœ…
NPI Profile Active December 11, 2023

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) December 11, 2023

Registered at 5223 N VISTA CT, SPOKANE, WA 992121639 (Tel: 5099531267)

๐Ÿ“
Business Mailing Address (Initial Record) December 11, 2023

Registered at 5223 N VISTA CT, SPOKANE, WA 992121639 (Tel: 5099531267)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) December 11, 2023

Recorded as AARON WALSDORF, FNP

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) December 11, 2023

Nurse Practitioner (license number reported to NPPES: WA F11230750)

๐ŸŸข
Initial NPI Registration & Enumeration December 11, 2023

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1689441594
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 11, 2023
Last Update: June 11, 2024
Sole Proprietor: Yes

Other Nurse Practitioners in Spokane

All Nurse Practitioners in Spokane

Mailing Address

Po Box 112

Spokane, WA 992100112

Phone: 5094646208

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.