TAMMY GAIL HENLEY AVILA PA-C
NPI 1295034932
Physician Assistant - Medical in Portsmouth, VA

NPI Status: Active since March 21, 2011

Contact Information

NAVAL MEDICAL CENTER PORTSMOUTH
620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA
ZIP 23708
Phone: (757) 953-7550

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NPPES record last updated: March 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 11, 2025, Mar 7, 2025, Feb 23, 2020 (3 updates tracked since 2020).

  • Individual
  • Female
  • Physician Assistant
  • Medical
  • PECOS Enrolled

About TAMMY AVILA

This page provides the complete NPI Profile along with additional information for Tammy Avila, a primary care provider established in Portsmouth, Virginia with a medical specialization in Physician Assistant, focusing in medical . The healthcare provider is registered in the NPI registry with number 1295034932 assigned on March 2011. The practitioner's primary taxonomy code is 363AM0700X with license number 0110001721 (VA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1295034932
Provider Name
TAMMY GAIL HENLEY AVILA PA-C
Gender
Female
Entity Type
Individual
Location Address
NAVAL MEDICAL CENTER PORTSMOUTH 620 JOHN PAUL JONES CIRCLE PORTSMOUTH, VA 23708
Location Phone
(757) 953-7550
Mailing Address
NAVAL MEDICAL CENTER PORTSMOUTH 620 JOHN PAUL JONES CIRCLE PORTSMOUTH, VA 23708
Is Sole Proprietor?
No
Enumeration Date
03-21-2011
Last Update Date
03-11-2025
Code Navigator

A primary care provider (PCP) like Tammy Avila 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

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

Physician Assistant Medical

Taxonomy Code
363AM0700X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
0110001721
License State
VA

Medicare Participation & PECOS Enrollment Status

Tammy Avila 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

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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 1295034932, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
2
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
5
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
3
Doubled → 6
Check
2
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 9 → 18 → 9 0 → 0 4 → 8 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 8 + 5 + 0 + 3 + 8 + 9 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1295034932.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Emergency Medicine (Emergency Medical Services)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Internal Medicine
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Emergency Medicine
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Psychologist (Clinical)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Audiologist
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
General Practice
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Dentist
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Pharmacist
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JONE PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Psychologist (Clinical)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Urology
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Internal Medicine (Nephrology)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Dentist (General Practice)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Nurse Practitioner (Women's Health)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Registered Nurse (Case Management)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708
Radiology (Diagnostic Radiology)
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Physical Therapist
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Optometrist
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708
Dentist
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
NORFOLK, VA 23708
Otolaryngology
NAVAL MEDICAL CENTER PORTSMOUTH, 620 JOHN PAUL JONES CIRCLE
PORTSMOUTH, VA 23708

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1295034932, enumerated as an "individual" on March 21, 2011.

The provider is located at NAVAL MEDICAL CENTER PORTSMOUTH 620 JOHN PAUL JONES CIRCLE PORTSMOUTH, VA 23708 and the phone number is (757) 953-7550.

Physician Assistant with taxonomy code 363AM0700X and a focus in Medical.