Physician Profile
Steven K. Yamazaki, M.D. is a healthcare provider in Castle Rock, CO specializing in family medicine. Steven is also listed as specializing in family medicine — sports medicine. According to Medicare claims data, Steven cared for 381 Medicare patients across 4,733 services. The services billed most often include hyaluronan or derivative, durolane, for intra-articular injection, 1 mg, injection, triamcinolone acetonide, not otherwise specified, 10 mg, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
831 S PERRY ST #200
Castle Rock, CO 80104
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
4,733 services · 381 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
171 | More often than most peers in Family Medicine |
| Injection into tendon or ligament | Procedure | 20550 |
16 | Less often than most peers in Family Medicine |
| Limited ultrasound scan of joint or other extremity structure except blood vessels | Imaging | 76882 |
149 | More than most peers in Family Medicine |
| Ultrasonic guidance for needle placement | Imaging | 76942 |
22 | Less often than most peers in Family Medicine |
| Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg | Drug given | J7318 |
3,605 | More often than most peers in Family Medicine |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
328 | More often than most peers in Family Medicine |
| Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose | Drug given | J7324 |
88 | As often as other peers in Family Medicine |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
41 | Less often than most peers in Family Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
293 | More often than most peers in Family Medicine |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
20 | As often as other peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Steven K. Yamazaki is a family doctor in Castle Rock, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Steven K. Yamazaki is listed at 831 S Perry St #200, Castle Rock, CO 80104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (303) 218-7774. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Steven K. Yamazaki's National Provider Identifier is 1861757890. 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
Steven K. Yamazaki attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
Steven K. Yamazaki has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Steven K. Yamazaki performs procedures including aspiration and/or injection of fluid large joint using ultrasound guidance and injection into tendon or ligament; reads or performs imaging such as limited ultrasound scan of joint or other extremity structure except blood vessels and ultrasonic guidance for needle placement, alongside routine visits and testing. 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 Steven K. Yamazaki. 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.