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Active NPI 1609826577 Individual Practitioner Male Practitioner

Dr. George John Lach , OD

Optometrist • Mankato, MN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. George Lach, OD is a certified Optometrist practicing in Mankato, MN. With approximately 27 years of clinical experience since graduating from Pacific University - College Of Optometry in 1999, Dr. Lach delivers high-quality medical care to the local community at 220 E MAIN ST.

Dr. Lach is affiliated with Carlson Tillisch Eye Clinic Ltd and accepts Medicare assignment.

Frequently performed procedures and clinical services include removal of cataract with insertion of lens, established 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

220 E Main St

Mankato, MN 560013574

Telephone 5073455087
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Pacific University - College Of Optometry

Graduation Year

1999

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Mankato, MN

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
27 Yrs +7.6 yrs vs City Avg
City Avg: 19.4 Yrs
State Avg: 21.7 Yrs
Regional Practice Density
17 Specialists

Practicing in Mankato, MN (1178 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
33.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Lach (27 Years) 27 Yrs
Mankato Specialty Average (19.4 Years) 19.4 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
66984 Removal of cataract with insertion of lens
1,719 15 $2.59 $1.16
92014 Established patient complete exam of visual system
183 183 $184.26 $124.66
99213 Established patient office or other outpatient visit, typically 15 minutes
49 41 $103.84 $88.21
92004 New patient complete exam of visual system
34 34 $206.65 $147.22
92134 Imaging of retina
28 27 $86.30 $38.76
92083 Exam of visual field with extended testing
21 19 $107.91 $63.00

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License MN 2758

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.

Hospital & Practice Group Affiliations

Carlson Tillisch Eye Clinic Ltd

120 N Broad St, Mankato, MN 560013518

Phone: 5073455087

Practice Associates & Co-Workers

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

4 Associated Practitioners
NPI 1205857042

Doctor of Optometry

NPI 1316974967

Doctor of Optometry

Murphy Grotewold

Optometrist

NPI 1376049031
NPI 1982702247

Doctor of Optometry

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 220 E MAIN ST, MANKATO, MN 560013574 (Tel: 5073455087)

📍
Updated Business Mailing Address July 08, 2007

Registered at 1722 CANDI LN, NORTH MANKATO, MN 560032001 (Tel: 5073887902)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as GEORGE LACH, O.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Optometrist (License #2758 in MN)

🟢
Initial NPI Registration & Enumeration May 11, 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: 1609826577
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 11, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

1722 Candi Ln

North Mankato, MN 560032001

Phone: 5073887902

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.