WILLIAM JOHN FLYNN M.D., O.D.
NPI 1700864089
Ophthalmology, Glaucoma Specialist in San Antonio,


Quality Rating: 100 out of 100 score

NPI Status: Active since January 6, 2006

Contact Information

5430 Fredericksburg Rd
San Antonio,
Post Code: 78229
Phone: (210) 340-1212
Fax: (210) 525-9617

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William John Flynn M.d., O.d. in San Antonio - Ophthalmology, Glaucoma Specialist

William John Flynn M.d., O.d. is a Ophthalmology, Glaucoma Specialist in San Antonio, . William John Flynn M.d., O.d. practices all healthcare services and medical treatments related to Ophthalmology, Glaucoma Specialist. The NPI Number for William John Flynn M.d., O.d. is 1700864089. The last update date is 2020-08-25.

William John Flynn M.d., O.d.'s current location address is 5430 Fredericksburg Rd, San Antonio, . You can contact this provider via phone number (210) 340-1212 and fax number (210) 525-9617. The mailing address for William John Flynn M.d., O.d. is 5430 Fredericksburg Rd, San Antonio, . To know further, please read the information below!

About GREGORY MERRITT

NPI
1700864089
Provider Name
WILLIAM JOHN FLYNN M.D., O.D.
Gender
Male
Entity Type
Individual
Location Address
5430 Fredericksburg Rd, San Antonio,
Location Phone
(210) 340-1212
Location Fax
(210) 525-9617
Mailing Address
5430 Fredericksburg Rd, San Antonio, Texas(TX)
Mailing Phone
210-340-1212
Mailing Fax
210-525-9617
Enumeration Date
2006-01-06
Last Update Date
2020-08-25
Code Navigator

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

Ophthalmology

Taxonomy Code
207W00000X
Type
-
License No.
M0722
License State
Texas (TX)
Taxonomy Description
-

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)
1 207WX0009X Glaucoma Specialist (Ophthalmology) Physician

Ophthalmology, Glaucoma Specialist

M0722 (Texas)

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
181794201 MEDICAID (05) Texas (TX)
181794202 MEDICAID (05) Texas (TX)
8M2751 Other (non-Medicare) (01) Texas (TX) Blue Cross Blue Shield

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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.
1700864089
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
27001668016
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. 27001668016
2 + 7 + 0 + 0 + 1 + 6 + 6 + 8 + 0 + 1 + 6 + 24 = 61
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 61 = 9 9

The NPI number 1700864089 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 5 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1215930367 LAURENT GRESSOT
Individual
Specialist 17323 RED OAK DR
HOUSTON, Texas (TX)
281-440-5006
1669475711 BIN SHENG SUNG
Individual
Pediatrics 7629 TIKI DR
FULSHEAR, Texas (TX)
281-346-0018
1396748349 GEORGE M GRUNERT
Individual
Obstetrics & Gynecology, Reproductive Endocrinology 7900 FANNIN ST STE 4000
HOUSTON, Texas (TX)
713-512-7900
1619970662 LISA AMY FRIEDMAN
Individual
Nurse Practitioner, Pediatrics 333 N SANTA ROSA
SAN ANTONIO, Texas (TX)
210-704-2190
1598768541 BERTHA E. ARENAS
Individual
Nurse Practitioner, Family 1702 N ALAMO ST
SAN ANTONIO, Texas (TX)
210-224-1823