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Edit this profileAt a glance
- 8555 E Florence Ave, Downey, CA 90240
About Dr. Bos
Based in Downey, CA, Mary A. Bos, DO is listed in the NPI registry under orthopaedic hand surgery. Mary graduated from Midwestern University, Chicago College of Osteopathic Med in 1991. Medicare claims data shows Mary provided 200 services to 155 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and x-ray of hand, minimum of 3 views. NPI 1780768879 identifies this record in the national registry.
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
- (562) 923-9351
- Email not available
Practice Locations
8555 E FLORENCE AVE
Downey, CA 90240
Conditions Commonly Evaluated or Treated
Within Hand Surgery 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
Arthritis & Joints
- Bone Spur on Finger
- Hand Arthritis
- Kienbock's Disease
- Stiff Fingers
- Hand and Wrist Arthritis
- Wrist sprain
Congenital
Fractures & Injuries
- Boxer's Fracture
- Broken Scaphoid Bone
- Dislocated Finger
- Black Toenail
- Hand and finger fractures
- Jammed Finger
- Severed Finger
- Torn Thumb Ligament
- Wrist Cartilage Tear
- Wrist fracture
Injuries
- Boxer's Knuckle
- Crushed Hand Injury
- Foreign Object in Hand
- Hand Compartment Syndrome
- Jersey Finger
- Sprained Finger
Lumps & Bumps
- Bone Tumor in Hand
- Finger Cyst
Lumps & Masses
- Hand Lump
- Ganglion Cyst In Hand Or Wrist
Nails
- Nail Bed Injury
Nerves
- Cut Nerve in Hand
- Hand Neuroma
- Hand Numbness and Tingling
- Hand Weakness
- Pinched Nerve in Wrist
- Wrist Drop
- Carpal tunnel
- Cubital tunnel syndrome
Tendons
- Intersection Syndrome
- Swan Neck Deformity
- De Quervain tenosynovitis
- Dupuytren's contracture
- Golfer's elbow
- Mallet Finger
- Tennis elbow
- Torn Hand Tendon
- Trigger finger
Circulation
Infections
- Infected Finger
Procedures & services
Bone surgery
- Ulnar Shortening Surgery
Cyst & Lump Removal
- Ganglion Cyst Removal
- Removal of a soft-tissue mass
Fracture Repair
- Boxer's Fracture Fixation
- Broken Finger Surgery
- Scaphoid Fracture Surgery
- Wrist fracture fixation
Injections
- Cortisone Shot for Finger
- Cortisone Shot for Wrist
- Xiaflex Injection for Dupuytren's
Injections & Therapy
- Custom Hand Splinting
- Mallet Finger Splinting
- PRP Shot for Wrist or Elbow
- Hand therapy
- Tendon Sheath Injection
Joint surgery
- Finger Bone Spur Removal
- Thumb Base Joint Replacement
Joint Surgery
- Finger Joint Fusion
- Finger Joint Replacement
- Thumb Arthritis Surgery
- Wrist Arthroscopy
- Wrist Cartilage Repair
- Wrist Fusion
- Thumb Ligament Repair
Minor procedures
- Finger Dislocation Reset
- Foreign Object Removal from Hand
Nail procedures
- Nail Bed Repair
- Blood Under Toenail Drainage
Nerve surgery
- Hand Neuroma Surgery
- Minimally Invasive Carpal Tunnel Release
Orthopedics
Pain management
- Wrist Denervation Surgery
Spine & Orthopedics
Tendon surgery
- Jersey Finger Repair
- Tendon Scar Tissue Release
Tendon Surgery
- Tendon Repair Surgery
- Tendon Transfer Surgery
- Thumb Tendon Release
- Dupuytren contracture surgery
- Tennis Elbow Surgery
- Trigger finger release
Trauma & Reconstruction
- Drainage of Finger Infection
- Extra Finger Removal
- Fingertip Reconstruction
- Severed Finger Reattachment
- Webbed Finger Separation
Wound repair
- Skin Graft for Hand Wound
Nerve Surgery
Procedures Most Often Billed to Medicare
200 services · 155 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
23 | Less often than most peers in Orthopaedic Hand Surgery |
| X-ray of hand, minimum of 3 views | Imaging | 73130 |
40 | Less often than most peers in Orthopaedic Hand Surgery |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
38 | Less often than most peers in Orthopaedic Hand Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
58 | Less often than most peers in Orthopaedic Hand Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
41 | Less often than most peers in Orthopaedic Hand Surgery |
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 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopaedic hand surgeons in Downey 4
Same specialty, same city.
Trained at Midwestern University, Chicago College of Osteopathic Med 3
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1991 at Midwestern University, Chicago College of Osteopathic Med 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from small joint 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Bos specialize in?
Dr. Bos is an orthopaedic hand surgeon in Downey, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Hand Surgery”.
NPI registry
Where is Dr. Bos located?
Dr. Bos is listed at 8555 E Florence Ave, Downey, CA 90240. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Bos's phone number?
The number on file is (562) 923-9351. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Bos?
Dr. Bos's National Provider Identifier is 1780768879. 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 Dr. Bos go to medical school?
Dr. Bos attended Midwestern University, Chicago College of Osteopathic Med, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Bos have?
Dr. Bos has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Bos do most often?
According to Medicare billing data, Dr. Bos performs procedures including aspiration and/or injection of fluid from small joint; reads or performs imaging such as x-ray of hand, minimum of 3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Bos's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Bos. If this is you, claiming it is free.
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