Active NPI 1568553667 Individual Practitioner Male Practitioner

Dr. William V Zemnickas , DO

Surgery • Lapeer, MI

Professional Overview & Biography Verified Profile Summary

Dr. William Zemnickas, DO is a registered healthcare professional specializing in Surgery in Lapeer, MI. Practice services are available at 844 S MAIN ST under active NPI credentials.

Frequently performed procedures and clinical services include biopsy of large bowel using an endoscope, colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

844 S Main St

Lapeer, MI 484463027

Telephone 8106644100

Fax 8106649250

Associated Practice Facility / Clinic

🏢 Surgical Specialist Pc Facility NPI 1659400513

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Lapeer, MI

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 13.7 Yrs

State Avg: 25.8 Yrs

Regional Practice Density

7 Specialists

Practicing in Lapeer, MI (1479 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

62.6% 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 (2023)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	21	21	$626.71	$191.95
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$357.00	$176.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	17	17	$764.76	$197.46
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$659.83	$119.25
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$353.09	$182.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	31	30	$750.42	$187.14
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	15	15	$650.40	$106.80
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	14	14	$345.43	$179.17
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	14	14	$788.43	$253.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	40	38	$737.85	$200.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	36	$162.62	$106.61
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	20	20	$636.40	$113.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	19	19	$170.26	$105.16
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	15	14	$337.33	$184.79

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	49	47	$138.71	$103.77
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$200.00	$160.63
45380 Biopsy of large bowel using an endoscope	47	47	$340.00	$182.60
45378 Diagnostic exam of large bowel using a flexible endoscope	32	32	$405.09	$189.57
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$152.26	$105.46
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	25	$259.07	$88.11
99213 Established patient office or other outpatient visit, typically 15 minutes	24	24	$100.63	$71.97
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	16	16	$250.88	$101.54
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	11	11	$295.00	$150.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	91	91	$150.11	$104.08
99213 Established patient office or other outpatient visit, typically 15 minutes	70	67	$100.00	$69.00
45380 Biopsy of large bowel using an endoscope	66	64	$372.42	$172.83
45378 Diagnostic exam of large bowel using a flexible endoscope	49	48	$410.82	$183.27
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	30	29	$263.33	$93.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$136.25	$103.81
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	14	14	$316.79	$146.82
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	13	$64.62	$41.91
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	13	$490.77	$258.76
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$200.00	$159.74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	11	$250.00	$198.70
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	11	11	$240.91	$79.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	120	120	$120.00	$69.88
99213 Established patient office or other outpatient visit, typically 15 minutes	102	91	$100.59	$69.52
45380 Biopsy of large bowel using an endoscope	68	68	$875.00	$171.14
45378 Diagnostic exam of large bowel using a flexible endoscope	66	66	$700.00	$187.11
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	25	23	$520.00	$105.26
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	23	21	$450.00	$88.86
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$200.00	$133.73
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	16	16	$980.00	$249.32
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	15	15	$600.00	$117.91
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$160.00	$97.90

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MI WZ007094

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

136702910 (MI)

Commercial Insurance / Payer ID Railroad Medicare

020002599 (MI)

Commercial Insurance / Payer ID Bcbsm Provider Number

0254410174 (MI)

Commercial Insurance / Payer ID Bluecare Network Prov #

020D410180 (MI)

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Ratan Rajani , MD

Surgery

NPI 1831297621

Doctor of Medicine (M.D.)

Dr. Forrest Robart , DO

Surgery

NPI 1871567834

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active November 28, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location November 28, 2017

Registered at 844 S MAIN ST, LAPEER, MI 484463027 (Tel: 8106644100)

📍

Updated Business Mailing Address November 28, 2017

Registered at 844 S MAIN ST, LAPEER, MI 484463027 (Tel: 8106644100)

👤

Provider Name / Credentials Updated November 28, 2017

Recorded as WILLIAM ZEMNICKAS, D.O

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 28, 2017

Surgery (License #WZ007094 in MI)

✅

NPI Profile Active June 12, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location June 12, 2008

Registered at 844 S MAIN ST, LAPEER, MI 484463027 (Tel: 8106644100)

📍

Updated Business Mailing Address June 12, 2008

Registered at 844 S MAIN ST, LAPEER, MI 484463027 (Tel: 8106644100)

👤

Provider Name / Credentials Updated June 12, 2008

Recorded as WILLIAM ZEMNICKAS, D.O

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 12, 2008

Surgery (License #WZ007094 in MI)

🟢

Initial NPI Registration & Enumeration September 27, 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: 1568553667

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: September 27, 2006

Last Update: November 28, 2017

Sole Proprietor: No

Update or Correct Profile

Mailing Address

844 S Main St

Lapeer, MI 484463027

Phone: 8106644100

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.