AHMAD A HAJJ MD
NPI 1043287345
Orthopaedic Surgery in Santa Ana, CA

NPI Status: Active since March 06, 2006

Contact Information

1220 HEMLOCK WAY
STE 203
SANTA ANA, CA
ZIP 92707
Phone: (714) 957-5721
Fax: (714) 957-5872

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  • Individual
  • Male
  • Orthopaedic Surgery
  • PECOS Enrolled

About AHMAD HAJJ

This page provides the complete NPI Profile along with additional information for Ahmad Hajj, a provider established in Santa Ana, California with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1043287345 assigned on March 2006. The practitioner's primary taxonomy code is 207X00000X with license number C40971 (CA). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1043287345
Provider Name
AHMAD A HAJJ MD
Gender
Male
Entity Type
Individual
Location Address
1220 HEMLOCK WAY STE 203 SANTA ANA, CA 92707
Location Phone
(714) 957-5721
Location Fax
(714) 957-5872
Mailing Address
1220 HEMLOCK WAY STE 203 SANTA ANA, CA 92707
Mailing Phone
(714) 957-5721
Mailing Fax
(714) 957-5872
Is Sole Proprietor?
No
Enumeration Date
03-06-2006
Last Update Date
05-22-2014
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Orthopaedic Surgery

Taxonomy Code
207X00000X
Type
Allopathic & Osteopathic Physicians
License No.
C40971
License State
CA
Taxonomy Description
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
A37490MEDICARE UPIN (02) 
GR0063390MEDICAID (05)CA 
WC40971AMEDICARE ID-TYPE UNSPECIFIED (04)CA 

Medicare Participation & PECOS Enrollment Status

Ahmad Hajj is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Hip replacement

A hip replacement is a surgical procedure where a worn-out or damaged hip joint is replaced with an artificial one. This procedure can greatly reduce pain and improve mobility. It's often recommended when other treatments like physical therapy or medications fail to alleviate symptoms.

This service was performed for 1-10 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 18 times for 18 patients

Knee replacement

A knee replacement is a surgical procedure where a damaged or diseased knee joint is replaced with an artificial one. This can relieve pain and improve mobility. The procedure involves removing damaged parts of the knee and inserting a prosthetic joint. Recovery may take several weeks.

This service was performed for 1-10 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 92707 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $96.36
  • Minimum New Patient Price $62.96
  • Maximum New Patient Price $187.6
  • Average New Patient Copayment $24.09
  • Minimum New Patient Copayment $15.74
  • Maximum New Patient Copayment $46.9

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $77.96
  • Minimum Established Patient Price $20.84
  • Maximum Established Patient Price $153.61
  • Average Established Patient Copayment $19.49
  • Minimum Established Patient Copayment $5.21
  • Maximum Established Patient Copayment $38.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for AHMAD A HAJJ MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1043287345
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2083481438
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 0 + 8 + 3 + 4 + 8 + 1 + 4 + 3 + 8 + 24 = 65
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 65 = 55

The NPI number 1043287345 is valid because the calculated check digit 5 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1336110352NGUYEN HUU, M.D., INC
Organization
Internal Medicine1220 HEMLOCK WAY SUITE 102
SANTA ANA, CA 92707
(714) 957-0040
1235199514 HAMID U RAHMAN MD
Individual
Orthopaedic Surgery1220 HEMLOCK WAY STE 200
SANTA ANA, CA 92707
(714) 751-0101
1689610552 MARTIN W. WIELER M.D.
Individual
Radiology (Diagnostic Radiology)1220 HEMLOCK WAY SUITE 106
SANTA ANA, CA 92707
(714) 545-9441
1629184536DR. FERDOUS F KAZEMI MD
Individual
Pediatrics1220 HEMLOCK WAY STE 105-B
SANTA ANA, CA 92707
(714) 966-6666
1770675357MR. MANSOOR - MOSLEY MD
Individual
Specialist1220 HEMLOCK WAY SUITE 104
SANTA ANA, CA 92707
(714) 754-5400
1699839332 ALAN B ROSS MD
Individual
Internal Medicine1220 HEMLOCK WAY SUITE 203
SANTA ANA, CA 92707
(714) 755-0224
1831248061DR. JENNIFER GIANG D.M.D.
Individual
Dentist (General Practice)1220 HEMLOCK WAY SUITE 103A
SANTA ANA, CA 92707
(714) 556-7430
1841401429 PATRICK SEIN DC
Individual
Chiropractor1220 HEMLOCK WAY SUITE 105A
SANTA ANA, CA 92707
(714) 751-7048
1285845867IRVINE COAST MRI MEDICAL GROUP
Organization
Radiology (Diagnostic Radiology)1220 HEMLOCK WAY SUITE 106
SANTA ANA, CA 92707
(714) 545-9441
1730390311ORANGE MRI MEDICAL GROUP
Organization
Radiology (Diagnostic Radiology)1220 HEMLOCK WAY SUITE 106
SANTA ANA, CA 92707
(714) 545-9441
1184835761SEIN CHIROPRACTIC
Organization
Chiropractor1220 HEMLOCK WAY SUITE 105A
SANTA ANA, CA 92707
(714) 751-7048
1396922068DR. HUU NGUYEN M.D.
Individual
Internal Medicine1220 HEMLOCK WAY SUITE 102
SANTA ANA, CA 92707
(714) 957-0040
1427362375CARLO Z. BISCARO,M.D., P.C.
Organization
Orthopaedic Surgery1220 HEMLOCK WAY STE 200
SANTA ANA, CA 92707
(714) 751-0101
1174889083TAGLIARINI CHIROPRACTIC, INC.
Organization
Chiropractor1220 HEMLOCK WAY SUITE 111
SANTA ANA, CA 92707
(714) 547-0777
1083970776FERDOUS F. KAZEMI, MD
Organization
Pediatrics1220 HEMLOCK WAY STE. 105B
SANTA ANA, CA 92707
(714) 966-6666
1679621726 BIJAN ZARDOUZ M.D.
Individual
Neurological Surgery1220 HEMLOCK WAY SUITE 108
SANTA ANA, CA 92707
(714) 540-2272
1265400550 CARLO Z BISCARO MD
Individual
Orthopaedic Surgery1220 HEMLOCK WAY STE 200
SANTA ANA, CA 92707
(714) 751-0101
1306274923AHMAD HAJJ MD INC
Organization
Orthopaedic Surgery1220 HEMLOCK WAY 203
SANTA ANA, CA 92707
(714) 957-5721
1366643082ORANGE COAST ORTHOPEDIC & SPORTS MEDICINE GROUP
Organization
Orthopaedic Surgery1220 HEMLOCK WAY STE 205
SANTA ANA, CA 92707
(714) 755-7006
1639590185ISRAEL ROTTERMANN MD PC
Organization
Orthopaedic Surgery1220 HEMLOCK WAY SUITE 205
SANTA ANA, CA 92707
(714) 755-7006

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1043287345, enumerated in the NPI registry as an "individual" on March 06, 2006

The provider is located at 1220 Hemlock Way Ste 203 Santa Ana, Ca 92707 and the phone number is (714) 957-5721

The provider's speciality is Orthopaedic Surgery with taxonomy code 207X00000X

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $96.36 with an average copayment of $24.09 for new patient appointments. Established patients should expect a typical charge of $77.96 and an average copayment of 19.49. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Hip replacement, Initial hospital inpatient care per day, typically 50 minutes and Knee replacement.

This NPI record was last updated on March 06, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.