Physician Profile
Horng-Chyi R. Lai, MD
Unclaimed ProfileAbout Dr. Lai
Horng-Chyi R. Lai, MD is a healthcare provider in Gillette, WY specializing in rheumatology. According to Medicare claims data, Horng-Chyi cared for 1,364 Medicare patients across 118,099 services. The services billed most often include injection, tocilizumab, 1 mg, injection, inclisiran, 1 mg, and injection, infliximab, excludes biosimilar, 10 mg. This provider record is associated with NPI 1528385598.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (307) 387-9850
- Email not available
Practice Locations
469 HIGHWAY 50
Gillette, WY 82718
1400 29th St S Ste 220
Great Falls, MT 59405
2600 Winne Ave Ste D
Helena, MT 59601
1400 29th St S Ste 218
Great Falls, MT 59405
100 Brookshire Blvd BLDG 2 UNIT 1
Billings, MT 59102
2600 Winne Ave Ste D1
Helena, MT 59601
100 Brookshire Blvd Bldg 2
Billings, MT 59102
Conditions Commonly Evaluated or Treated
Within Rheumatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Fibromyalgia
- Gout
- Lupus
- Osteoarthritis
- Psoriatic arthritis
- Rheumatoid arthritis
Autoimmune
- Antiphospholipid Syndrome
- Behçet's Disease
- Dermatomyositis
- Dry Eyes and Mouth
- Granulomatosis with Polyangiitis
- IgA Vasculitis
- IgG4-Related Disease
- Inflammatory myopathy
- Lupus Butterfly Rash
- Positive ANA Blood Test
- Relapsing Polychondritis
Bone
- Paget's Disease of Bone
Bone Health
Connective Tissue
- Hypermobility Syndrome
- Mixed Connective Tissue Disease
- Scleroderma skin disease
- Undifferentiated Connective Tissue Disease
Genetic & Connective Tissue
Inflammatory
- Adult-Onset Still's Disease
- Polymyalgia rheumatica
- Rib pain
- Sarcoidosis Joint Pain
Joints
- Baker's Cyst
- Chronic Joint Pain
- Enteropathic Arthritis
- Juvenile Idiopathic Arthritis
- Morning Joint Stiffness
- Palindromic Rheumatism
- Pseudogout
- Reactive Arthritis
- Swollen Fingers or Toes
- Swollen Joints
Nerve & Tendon
Skin & Soft Tissue
- Erythema Nodosum
Skin & Vascular
- Hypothermia And Frostbite At Work
- Mottled Purplish Skin
Soft Tissue
Spine & Back
- Ankylosing Spondylitis
- Sacroiliac joint pain
Vascular
- Cold Sensitive Fingers and Toes
- Temporal Arteritis
- Vasculitis
Procedures & services
Most searched procedures
- Arthritis management
- Infusion therapy
- Joint injections
Consultation
- Second Opinion for Autoimmune Disease
Consultations
- Osteoporosis Medication Consultation
Diagnostics & Injections
- Baker's Cyst Aspiration
- Bursa injection
- Carpal tunnel steroid injection
- Joint injection or aspiration
- Knee Joint Injection
- Nailfold Capillaroscopy
- Sacroiliac joint injection
- Salivary Gland Biopsy
- Tendon Sheath Injection
Education & Support
Imaging
- Bone Density Scan Referral
- Joint Ultrasound
Injections
- Ankle Joint Injection
- Finger Joint Injections
- Shoulder Cortisone Injection
- Ultrasound-guided hip injection
- Wrist Cortisone Injection
Lab & Diagnostics
- ANCA Blood Test
- Anti-CCP Antibody Test
- HLA-B27 Genetic Test
- Inflammation Blood Tests
- Joint Fluid Analysis
- Lupus Skin Biopsy
- Myositis Antibody Panel
- Rheumatoid Factor Blood Test
Lab Work
- Autoimmune Blood Panel
- Uric Acid Monitoring
Medication Management
- Biologic medication management
- DMARD Medication Management
- Gout Flare Treatment Plan
- Immunosuppressant Drug Monitoring
- Prolia Injection for Osteoporosis
- Reclast Infusion for Osteoporosis
- Steroid Taper Management
Pain Relief
- Trigger Point Injections
Regenerative Medicine
- PRP Therapy for Joints
Procedures Most Often Billed to Medicare
118,099 services · 1,364 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
263 | As often as other peers in Rheumatology |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
20 | Less often than most peers in Rheumatology |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
511 | More often than most peers in Rheumatology |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
375 | More than most peers in Rheumatology |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
274 | More often than most peers in Rheumatology |
| Injection of additional new drug or substance into vein | Treatment | 96375 |
150 | More often than most peers in Rheumatology |
| Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | Treatment | 96366 |
127 | More often than most peers in Rheumatology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
92 | As often as other peers in Rheumatology |
| Injection, tocilizumab, 1 mg | Drug given | J3262 |
63,320 | More often than most peers in Rheumatology |
| Injection, inclisiran, 1 mg | Drug given | J1306 |
13,633 | More often than most peers in Rheumatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 2 related providers in 1 group
Also performs Insertion of needle into vein for collection of blood sample 2
Providers in WY who bill this service to Medicare most often.
Common questions
What is Dr. Lai's specialty?
Dr. Lai is a rheumatologist in Gillette, WY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Rheumatology”.
NPI registry
Where can I find Dr. Lai?
Dr. Lai is listed at 469 Highway 50, Gillette, WY 82718. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lai?
The number on file is (307) 387-9850. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Lai's NPI number?
Dr. Lai's National Provider Identifier is 1528385598. 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
What is Dr. Lai's medical education?
Dr. Lai attended Other, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lai been practicing?
Dr. Lai has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lai known for?
According to Medicare billing data, Dr. Lai performs procedures including insertion of needle into vein for collection of blood sample and aspiration and/or injection of fluid from large joint; provides treatments such as administration of chemotherapy into vein, 1 hour or less and administration of chemotherapy into vein, each additional hour, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Lai confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lai. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.