JOHN FRANCIS RYAN MD
NPI 1518402676
Otolaryngology - Plastic Surgery within the Head & Neck in San Jose, CA

NPI Status: Active since December 28, 2016

Contact Information

2581 SAMARITAN DR
SAN JOSE, CA
ZIP 95124
Phone: (408) 357-6090

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  • Individual
  • Male
  • Years of Experience 13
  • Otolaryngology
  • Plastic Surgery within the Head & Neck
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About JOHN RYAN

This page provides the complete NPI Profile along with additional information for John Ryan, a provider established in San Jose, California with a medical specialization in Otolaryngology, focusing in plastic surgery within the head & neck and more than 13 years of experience. He graduated from Johns Hopkins University School Of Medicine in 2014. The healthcare provider is registered in the NPI registry with number 1518402676 assigned on December 2016. The practitioner's primary taxonomy code is 207YX0007X with license number 192924 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1518402676
Provider Name
JOHN FRANCIS RYAN MD
Gender
Male
Entity Type
Individual
Location Address
2581 SAMARITAN DR SAN JOSE, CA 95124
Location Phone
(408) 357-6090
Mailing Address
PO BOX 276950 SACRAMENTO, CA 95827
Medical School Name
JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2014
Is Sole Proprietor?
No
Enumeration Date
12-28-2016
Last Update Date
10-22-2025
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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

Otolaryngology Plastic Surgery within the Head & Neck

Taxonomy Code
207YX0007X
Type
Allopathic & Osteopathic Physicians
License No.
192924
License State
CA
Taxonomy Description
An otolaryngologist with additional training in plastic and reconstructive procedures within the head, face, neck and associated structures, including cutaneous head and neck oncology and reconstruction, management of maxillofacial trauma, soft tissue repair and neural surgery. The field is diverse and involves a wide age range of patients, from the newborn to the aged. While both cosmetic and reconstructive surgeries are practiced, there are many additional procedures which interface with them.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207YS0123XAllopathic & Osteopathic Physicians

Otolaryngology
Facial Plastic Surgery

192924 (CA)

Medicare Participation & PECOS Enrollment Status

John Ryan is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

John Ryan 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

  • PECOS PAC ID: 1658605332

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20240531001925

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • 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 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 1518402676, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
5
Unchanged
Pos 3
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
4
Doubled → 8
Pos 6
0
Unchanged
Pos 7
2
Doubled → 4
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 1 → 2 4 → 8 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 8 + 0 + 4 + 6 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1518402676.

Other Providers at the Same Location


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

Surgery (Plastic and Reconstructive Surgery)
2581 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124
Urology
2581 SAMARITAN DR, SUITE 200
SAN JOSE, CA 95124
Clinic/Center (Dental)
2581 SAMARITAN DR, SUITE #310
SAN JOSE, CA 95124
Nurse Practitioner
2581 SAMARITAN DR, SUITE 302
SAN JOSE, CA 95124
Clinic/Center (Ambulatory Surgical)
2581 SAMARITAN DR, SUITE 300
SAN JOSE, CA 95124
Obstetrics & Gynecology (Reproductive Endocrinology)
2581 SAMARITAN DR, SUITE 302
SAN JOSE, CA 95124
Obstetrics & Gynecology (Reproductive Endocrinology)
2581 SAMARITAN DR, SUITE 302
SAN JOSE, CA 95124
Surgery (Plastic and Reconstructive Surgery)
2581 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124
Dentist (Periodontics)
2581 SAMARITAN DR, SUITE 310
SAN JOSE, CA 95124
Obstetrics & Gynecology (Reproductive Endocrinology)
2581 SAMARITAN DR, SUITE 308
SAN JOSE, CA 95124
Internal Medicine (Interventional Cardiology)
2581 SAMARITAN DR, STE 202
SAN JOSE, CA 95124
Internal Medicine (Interventional Cardiology)
2581 SAMARITAN DR, STE 202
SAN JOSE, CA 95124
Internal Medicine (Interventional Cardiology)
2581 SAMARITAN DR, STE 202
SAN JOSE, CA 95124
Otolaryngology
2581 SAMARITAN DR, SUITE 210
SAN JOSE, CA 95124
Clinical Medical Laboratory
2581 SAMARITAN DR, SUITE 306
SAN JOSE, CA 95124
Clinic/Center (Ambulatory Fertility Facility)
2581 SAMARITAN DR, SUITE 308
SAN JOSE, CA 95124
Specialist
2581 SAMARITAN DR, SUITE 302
SAN JOSE, CA 95124
Radiology (Diagnostic Radiology)
2581 SAMARITAN DR, SUITE 206
SAN JOSE, CA 95124
Physician Assistant
2581 SAMARITAN DR
SAN JOSE, CA 95124
Physician Assistant
2581 SAMARITAN DR
SAN JOSE, CA 95124

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518402676, enumerated as an "individual" on December 28, 2016.

The provider is located at 2581 SAMARITAN DR SAN JOSE, CA 95124 and the phone number is (408) 357-6090.

Otolaryngology with taxonomy code 207YX0007X and a focus in Plastic Surgery within the Head & Neck.