Physician Profile
Based in Aurora, CO, Ryan L. Rathjen, M.D. is listed in the NPI registry under anesthesiology. Ryan graduated from Sanford School of Medicine of University of South Dakota in 2001. Ryan is also listed as specializing in anesthesiology — critical care and anesthesiology — pain medicine. Medicare claims data shows Ryan provided 28 services to 27 patients. The services billed most often include injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) and injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus).
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
12605 E 16TH AVE
Aurora, CO 80045
9395 Crown Crest Blvd
Parker, CO 80138
Within Anesthesiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Anesthesia complications
Back & spine
Chronic pain
Facial & jaw pain
General pain
Head & facial pain
Headaches
Joint pain
Mental health
Muscle pain
Musculoskeletal pain
Nerve pain
Pelvic pain
Post-surgery recovery
Sedation & anesthesia
Spine pain
Ablation
Head & facial procedures
Implants & devices
Infusion therapies
Infusion therapy
Joint injections
Muscle injections
Nerve blocks
Nerve injections
Nerve procedures
Pain relief procedures
Regional anesthesia
Sedation
Sedation & anesthesia
Spine injections
Spine procedures
28 services · 27 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | Procedure | 64447 |
17 | As often as other peers in Anesthesiology |
| Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) | Procedure | 64415 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Ryan L. Rathjen is an anesthesiologist in Aurora, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.
NPI registry
Ryan L. Rathjen is listed at 12605 E 16Th Ave, Aurora, CO 80045. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (720) 848-0000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Ryan L. Rathjen's National Provider Identifier is 1437245057. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Ryan L. Rathjen attended Sanford School of Medicine of University of South Dakota, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
Ryan L. Rathjen has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Ryan L. Rathjen performs procedures including injection of anesthetic agent and/or steroid into thigh nerve and injection of anesthetic agent and/or steroid into arm nerve bundle. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Ryan L. Rathjen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.