Physician Profile
Ahmad A. Hajj, MD
Unclaimed ProfileAbout Dr. Hajj
Ahmad A. Hajj, MD practices orthopaedic surgery in Santa Ana, CA. Medicare claims data shows Ahmad provided 32 services to 32 patients. The services billed most often include initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes and initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes.
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
- (714) 957-5721
- Email not available
Practice Locations
1220 HEMLOCK WAY STE 203
Santa Ana, CA 92707
Conditions Commonly Evaluated or Treated
Within Orthopedic 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
Most searched conditions
- Arthritis
- Carpal tunnel
- Rotator cuff tear
- Sciatica
- Torn Achilles tendon
- Torn ACL
- Torn meniscus
Elbow, hand, and wrist
- Cubital tunnel syndrome
- Golfer's elbow
- Tennis elbow
- Trigger finger
- Wrist fracture
Foot and ankle
- Ankle fracture
- Ankle sprain
- Heel pain
Hip
- Hip labral tear
- Lateral hip pain and trochanteric bursitis
Shoulder
- Broken collarbone
- Frozen shoulder
- Shoulder impingement
- Dislocated joint
Sports and soft tissue
- Stress fracture
Trauma and bone
- Bone fractures
- Osteoporosis
Foot & Ankle
- Bunions
Spine
- Herniated disc
- Scoliosis
- Spinal stenosis
Procedures & services
Most searched procedures
- Achilles tendon repair
- ACL reconstruction
- Carpal tunnel surgery
- Hip replacement
- Knee replacement
Evaluation and nonsurgical
- Cast placement and management
Arthroscopy
- Hip arthroscopy
- Rotator cuff repair
- Shoulder arthroscopy
Foot & Ankle
- Ankle Ligament Surgery
- Hammertoe Surgery
Foot and ankle
- Ankle arthroscopy
- Ankle fusion
- Bunion surgery
Hand & Wrist
- De Quervain's Release
Hand and upper extremity
- Cubital tunnel decompression
- Dupuytren contracture surgery
- Trigger finger release
Injections & Non-Surgical
- Knee Joint Injection
- PRP Injection
Injections & pain relief
- Cortisone Shot for Joint Pain
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
- Kneecap Stabilization Surgery
- Meniscus Surgery
Shoulder surgery
- Shoulder labrum repair
Trauma & Fractures
- Broken Hip Surgery
- Hardware Removal Surgery
Trauma and fixation
- Open reduction and internal fixation
Procedures Most Often Billed to Medicare
32 services · 32 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
18 | As often as other peers in Orthopaedic Surgery |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
14 | Less often than most peers in Orthopaedic 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.
Other orthopaedic surgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 22 related providers in 3 groups
Other orthopaedic surgeons in Santa Ana 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1974 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Hajj specialize in?
Dr. Hajj is an orthopaedic surgeon in Santa Ana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where is Dr. Hajj located?
Dr. Hajj is listed at 1220 Hemlock Way Ste 203, Santa Ana, CA 92707. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Hajj's phone number?
The number on file is (714) 957-5721. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Hajj?
Dr. Hajj's National Provider Identifier is 1043287345. 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. Hajj go to medical school?
Dr. Hajj attended Other, graduating in 1974. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hajj have?
Dr. Hajj has 52 years experience. Calculated from a graduation year of 1974, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Hajj do most often?
According to Medicare billing data, Dr. Hajj the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hajj's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hajj. 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.