Dr. Katelan Longfellow, M.D.
What this data tells you about Dr. Longfellow
Dr. Katelan Longfellow is a neurology specialist in Seattle, WA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Longfellow performed 25,303 Medicare services across 621 unique beneficiaries.
Between the years covered by Open Payments, Dr. Longfellow received a total of $3,022 from 11 pharmaceutical and/or device companies across 33 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Longfellow is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
24,300 | $5 | $18 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
371 | $126 | $515 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
244 | $84 | $365 |
| Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | 81 | $63 | $229 |
| Electronic analysis of implanted neurostimulator Electronic evaluation of an implanted brain, spinal cord, or peripheral nerve stimulator device. |
70 | $13 | $177 |
| Chemical nerve block for neck muscles Injection of a chemical agent to paralyze specific muscles on the side of the neck, excluding the voice box. |
57 | $134 | $783 |
| New patient office visit, complex (60-74 min) | 48 | $140 | $631 |
| Chemical nerve block for facial paralysis Injection of a chemical agent to paralyze specific nerves or muscles on the side of the face. |
39 | $156 | $737 |
| Assessment of and care planning for patient with impaired thought processing, typically 60 minutes | 30 | $215 | $781 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
24 | $45 | $259 |
| Brain stimulator programming, first 15 minutes Electronic analysis of an implanted brain, spinal cord, or peripheral neurostimulator generator. This service includes programming the brain stimulator by a qualified health professional for the first 15 minutes. |
22 | $36 | $146 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
17 | $45 | $163 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Longfellow is a mixed practice specialist, with above-average Medicare volume (top 2% in WA), with low-engagement industry engagement, with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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