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Active NPI 1285674291 Individual Practitioner Male Practitioner

Dr. William Patrick Gerlach , OD

Optometrist • Visalia, CA

Professional Overview & Biography Verified Profile Summary

Dr. William Gerlach, OD is a registered healthcare professional specializing in Optometrist in Visalia, CA. Practice services are available at 2830 W MAIN ST under active NPI credentials.

Frequently performed procedures and clinical services include established patient complete exam of visual system, new patient complete exam of visual system, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2830 W Main St

Visalia, CA 932914331

Telephone 5596361000
Fax 5597337438
Associated Practice Facility / Clinic
🏢 Sierra Eye Medical Group Inc. Facility NPI 1164478491

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Visalia, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 18.1 Yrs
State Avg: 21.9 Yrs
Regional Practice Density
35 Specialists

Practicing in Visalia, CA (8588 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
0.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2020)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
92014 Established patient complete exam of visual system
182 180 $134.56 $133.64
92004 New patient complete exam of visual system
35 35 $158.90 $157.93
99213 Established patient office or other outpatient visit, typically 15 minutes
22 21 $78.12 $78.03
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
17 15 $47.48 $47.45
92134 Imaging of retina
11 11 $45.55 $43.25

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License CA OPT 6033 TPA

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Optometry License
OPT 6033 TPA (CA)
Commercial Insurance / Payer ID Tied With Medicare Group Ptan
ZZZ26499Z (CA)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

6 Associated Practitioners
NPI 1316993926

Doctor of Medicine (M.D.)

NPI 1407060320

Doctor of Optometry

NPI 1407895071

Doctor of Medicine (M.D.)

NPI 1457545774

Doctor of Medicine (M.D.)

NPI 1528491990

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

NPI 1861431413

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active October 08, 2009

NPI status registered as active in NPPES database

📍
Updated Practice Location October 08, 2009

Registered at 2830 W MAIN ST, VISALIA, CA 932914331 (Tel: 5596361000)

📍
Updated Business Mailing Address October 08, 2009

Registered at 2830 W MAIN ST, VISALIA, CA 932914331 (Tel: 5596361000)

👤
Provider Name / Credentials Updated October 08, 2009

Recorded as WILLIAM GERLACH, O.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 08, 2009

Optometrist (License #OPT 6033 TPA in CA)

🟢
Initial NPI Registration & Enumeration June 07, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1285674291
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 07, 2006
Last Update: October 08, 2009
Sole Proprietor: Yes

Mailing Address

2830 W Main St

Visalia, CA 932914331

Phone: 5596361000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.