Physician Profile
Farzan Mahmood, M.D
Unclaimed ProfileAbout Dr. Mahmood
Based in Naperville, IL, Farzan Mahmood, M.D is listed in the NPI registry under rheumatology. Farzan is also listed as specializing in internal medicine. Medicare claims data shows Farzan provided 3,941 services to 554 patients. The services billed most often include injection, denosumab, 1 mg, injection, methylprednisolone acetate, 1 mg, and injection, triamcinolone acetonide, not otherwise specified, 10 mg.
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.
Education & Training
Specialty
Credentials & Licensing
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.
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
- (630) 585-7100
- Email not available
Practice Locations
1508 SEQUOIA RD
Naperville, IL 60540
818 Forest Ln
Waterford, WI 53185
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
- Osteoporosis
Connective Tissue
- Hypermobility Syndrome
- Mixed Connective Tissue Disease
- Scleroderma skin disease
- Undifferentiated Connective Tissue Disease
Genetic & Connective Tissue
- Joint Hypermobility
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
- Carpal tunnel
Skin & Soft Tissue
- Erythema Nodosum
Skin & Vascular
- Hypothermia And Frostbite At Work
- Mottled Purplish Skin
Soft Tissue
- Lateral hip pain and trochanteric bursitis
- Shoulder Pain
- Tendinitis and tendinopathy
- Trigger finger
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
- Biologic self-injection training
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
3,941 services · 554 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
75 | Less often than most peers in Rheumatology |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
55 | More often than most peers in Rheumatology |
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
36 | More often than most peers in Rheumatology |
| Aspiration and/or injection of fluid from medium joint | Procedure | 20605 |
13 | Less often than most peers in Rheumatology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
65 | As often as other peers in Rheumatology |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,980 | Less often than most peers in Rheumatology |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
1,020 | Less often than most peers in Rheumatology |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
355 | More often than most peers in Rheumatology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
226 | As often as other peers in Rheumatology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
116 | More 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.
Other rheumatologists in Naperville 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Farzan Mahmood specialize in?
Farzan Mahmood is a rheumatologist in Naperville, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Rheumatology”.
NPI registry
Where is Farzan Mahmood located?
Farzan Mahmood is listed at 1508 Sequoia Rd, Naperville, IL 60540. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Farzan Mahmood's phone number?
The number on file is (630) 585-7100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Farzan Mahmood?
Farzan Mahmood's National Provider Identifier is 1841484961. 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
Where did Farzan Mahmood train?
Farzan Mahmood attended Other, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Farzan Mahmood have?
Farzan Mahmood has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Farzan Mahmood do most often?
According to Medicare billing data, Farzan Mahmood performs procedures including insertion of needle into vein for collection of blood sample, aspiration and/or injection of fluid from large joint and aspiration and/or injection of fluid from small joint; provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Farzan Mahmood's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Farzan Mahmood. 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.