DR. AZITA ROBATI HASSAS M.D.
NPI 1972891679
General Practice in Tustin, CA

NPI Status: Active since July 14, 2011

Contact Information

661 W 1ST ST STE G
TUSTIN, CA
ZIP 92780
Phone: (714) 665-9890
Fax: (714) 665-9891

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  • Individual
  • Female
  • General Practice
  • PECOS Enrolled

About AZITA HASSAS

This page provides the complete NPI Profile along with additional information for Azita Hassas, a primary care provider established in Tustin, California with a medical specialization in General Practice. The healthcare provider is registered in the NPI registry with number 1972891679 assigned on July 2011. The practitioner's primary taxonomy code is 208D00000X with license number A108511 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1972891679
Provider Name
DR. AZITA ROBATI HASSAS M.D.
Gender
Female
Entity Type
Individual
Location Address
661 W 1ST ST STE G TUSTIN, CA 92780
Location Phone
(714) 665-9890
Location Fax
(714) 665-9891
Mailing Address
661 W 1ST ST STE G TUSTIN, CA 92780
Mailing Phone
(714) 665-9890
Mailing Fax
(714) 665-9891
Is Sole Proprietor?
No
Enumeration Date
07-14-2011
Last Update Date
10-22-2025
Code Navigator

A primary care provider (PCP) like Azita Hassas sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Secondary Locations

  • 11180 Warner Ave Ste 353
    Fountain Valley, CA 92708
    (714) 968-6789
  • 9918 Katella Ave Ste A-C
    Anaheim, CA 92804
    (714) 644-9494

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

General Practice

Taxonomy Code
208D00000X
Type
Allopathic & Osteopathic Physicians
License No.
A108511
License State
CA
Taxonomy Description
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

Medicare Participation & PECOS Enrollment Status

Azita Hassas 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

Reviews for DR. AZITA ROBATI HASSAS M.D.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1972891679, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 8 → 16 → 7 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 1 + 4 + 2 + 1 + 6 + 9 + 2 + 6 + 1 + 4 + 24 = 71

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1972891679.

Other Providers at the Same Location


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

Family Medicine
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner (Women's Health)
661 W 1ST ST STE G
TUSTIN, CA 92780
Physician Assistant
661 W 1ST ST STE G
TUSTIN, CA 92780
Counselor (Mental Health)
661 W 1ST ST STE G
TUSTIN, CA 92780
Internal Medicine
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner (Family)
661 W 1ST ST STE G
TUSTIN, CA 92780
Physician Assistant (Medical)
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner (Adult Health)
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner (Family)
661 W 1ST ST STE G
TUSTIN, CA 92780
Dental Hygienist
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner
661 W 1ST ST STE G
TUSTIN, CA 92780
Physician Assistant
661 W 1ST ST STE G
TUSTIN, CA 92780
Physician Assistant
661 W 1ST ST STE G
TUSTIN, CA 92780
Physician Assistant
661 W 1ST ST STE G
TUSTIN, CA 92780
Internal Medicine
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner (Family)
661 W 1ST ST STE G
TUSTIN, CA 92780
Physician Assistant
661 W 1ST ST STE G
TUSTIN, CA 92780
Dentist
661 W 1ST ST STE G
TUSTIN, CA 92780
Clinic/Center (Primary Care)
661 W 1ST ST STE G
TUSTIN, CA 92780
Nurse Practitioner
661 W 1ST ST STE G
TUSTIN, CA 92780

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972891679, enumerated as an "individual" on July 14, 2011.

The provider is located at 661 W 1ST ST STE G TUSTIN, CA 92780 and the phone number is (714) 665-9890.

General Practice with taxonomy code 208D00000X.