Dr. John Zapas, MD - Surgery in Frederick, MD

Professional Overview & Biography Verified Profile Summary

Dr. John Zapas, MD is a certified Surgery practicing in Frederick, MD. With approximately 35 years of clinical experience since graduating from University Of Maryland School Of Medicine in 1991, Dr. Zapas delivers high-quality medical care to the local community at 501 W 7TH ST.

Dr. Zapas maintains professional affiliations with Frederick Health Medical Group Llc, Beebe Physician Network Inc. and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, repair of groin hernia using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

501 W 7th St

Frederick, MD 217014586

Telephone 3016639573

Associated Practice Facility / Clinic

🏢 Lee Oncology, Pa Facility NPI 1518014935

Medicare Profile & Education

Medical School

University Of Maryland School Of Medicine

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Frederick, MD

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +10.0 yrs vs City Avg

City Avg: 25.0 Yrs

State Avg: 28.6 Yrs

Regional Practice Density

21 Specialists

Practicing in Frederick, MD (717 Statewide)

Telehealth Adoption Rate

9.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

52.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Zapas (35 Years) 35 Yrs

Frederick Specialty Average (25.0 Years) 25.0 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
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$333.00	$164.24
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	56	56	$222.00	$109.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	33	$255.00	$127.60
49650 Repair of groin hernia using an endoscope	33	32	$922.58	$458.16
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	25	23	$359.00	$179.34
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	22	22	$649.00	$323.16
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	21	21	$197.00	$17.46
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	18	$113.00	$56.35
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	16	16	$1429.00	$691.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	59	59	$333.00	$168.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$224.00	$115.00
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	36	$255.00	$130.86
49650 Repair of groin hernia using an endoscope	23	23	$945.57	$463.98
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	16	$358.00	$183.28
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	15	15	$2008.00	$338.16
99231 Follow-up hospital inpatient care per day, typically 15 minutes	14	11	$99.00	$50.60
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	14	$259.00	$132.56
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	14	$113.00	$58.09
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	13	13	$205.00	$18.23

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	67	67	$236.00	$113.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	43	37	$235.00	$131.57
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$358.00	$171.81
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	27	27	$2415.00	$331.84
99231 Follow-up hospital inpatient care per day, typically 15 minutes	26	16	$85.00	$39.25
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	25	25	$41.00	$18.09
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$295.00	$136.58
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	15	$157.00	$72.11
47562 Removal of gallbladder using an endoscope	14	14	$1550.00	$704.93
99213 Established patient office or other outpatient visit, typically 15 minutes	12	12	$161.00	$93.33

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	53	53	$236.00	$118.16
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	33	$235.00	$136.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$358.00	$176.46
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$161.00	$96.04
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$295.00	$140.87
47562 Removal of gallbladder using an endoscope	14	14	$1493.57	$630.23
99231 Follow-up hospital inpatient care per day, typically 15 minutes	14	12	$85.00	$39.65
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	14	13	$157.00	$74.44
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	13	13	$2415.00	$354.34
49650 Repair of groin hernia using an endoscope	13	13	$1585.15	$501.07
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	12	12	$41.00	$19.52

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	57	45	$235.00	$112.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$236.00	$111.77
99213 Established patient office or other outpatient visit, typically 15 minutes	13	12	$161.00	$78.06
49650 Repair of groin hernia using an endoscope	12	12	$2150.42	$537.56

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	74	67	$233.24	$111.14
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	34	34	$236.00	$108.59
99213 Established patient office or other outpatient visit, typically 15 minutes	30	26	$159.73	$75.86
49650 Repair of groin hernia using an endoscope	11	11	$1104.82	$533.93

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	75	67	$199.47	$107.86
99213 Established patient office or other outpatient visit, typically 15 minutes	52	38	$129.58	$74.07
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$197.70	$108.91
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	38	22	$125.53	$74.37
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	14	13	$2143.00	$354.99
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	14	13	$186.00	$19.12
47562 Removal of gallbladder using an endoscope	11	11	$1355.45	$630.95
99221 Initial hospital inpatient care per day, typically 30 minutes	11	11	$167.45	$103.71

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	68	68	$161.00	$109.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	47	43	$160.00	$108.10
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	42	24	$110.00	$73.41
99213 Established patient office or other outpatient visit, typically 15 minutes	34	25	$107.35	$74.60
99221 Initial hospital inpatient care per day, typically 30 minutes	19	19	$156.00	$103.29
99284 Emergency department visit with moderate level of medical decision making	13	13	$174.00	$119.20
49650 Repair of groin hernia using an endoscope	12	12	$647.00	$412.73

Medical Specialties & State Licenses

CMS Verified: 2025-06-10

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License DE C1-0028199

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.

Surgery

NUCC Taxonomy Code: 208600000X

State License MD D0044227

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.

Hospital & Practice Group Affiliations

Beebe Physician Network Inc.

424 Savannah Rd, Lewes, DE 199581462

Phone: 3026453525

Frederick Health Medical Group Llc

400 W 7th St, Frederick, MD 217014506

Phone: 2402156310

Frederick Health Medical Group Llc

504 E Ridgeville Blvd, Mount Airy, MD 217715942

Phone: 2402156310

Secondary Practice Locations

7211 Bank Ct, Suite 200

Frederick, MD 217038483

Phone: 2405752526

424 Savannah Rd

Lewes, DE 199581462

Phone: 3027033630

19161 Healthy Way

Rehoboth Beach, DE 199714491

Phone: 3027033630

18941 John J Williams Hwy

Rehoboth Beach, DE 199714404

Phone: 3027033630

33672 Bayview Medical Dr Fl 1

Lewes, DE 199581687

Phone: 3027033630

Practice Associates & Co-Workers

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

9 Associated Practitioners

Dr. Mihir Jani , MD

Orthopaedic Surgery - Sports Medicine

NPI 1144283359

Doctor of Medicine (M.D.)

Christie Robbins , FNP

Nurse Practitioner - Family

NPI 1154613065

Family Nurse Practitioner

Dr. Robert Fisher , MD

Orthopaedic Surgery

NPI 1295798569

Doctor of Medicine (M.D.)

Jennifer Gannon , PA

Physician Assistant - Surgical

NPI 1396703575

Physician Assistant

Dr. Therlinsie Fleurizard , MD

Orthopaedic Surgery

NPI 1407241664

Doctor of Medicine (M.D.)

Alan Dombrosky , PA

Physician Assistant - Medical

NPI 1578521068

Physician Assistant

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Business Mailing Address June 10, 2025

Registered at 1515 SAVANNAH RD, LEWES, DE 199581675 (Tel: 3026453499)

📍

Updated Practice Location January 24, 2020

Registered at 501 W 7TH ST, FREDERICK, MD 217014586 (Tel: 3016639573)

📍

Updated Business Mailing Address January 24, 2020

Registered at PO BOX 37086, BALTIMORE, MD 212973086 (Tel: 2404398812)

✅

NPI Profile Active January 23, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location January 23, 2015

Registered at 7211 BANK CT, SUITE 200, FREDERICK, MD 217038483 (Tel: 2405752526)

📍

Updated Business Mailing Address January 23, 2015

Registered at 7211 BANK CT, SUITE 200, FREDERICK, MD 217038483 (Tel: 2405752526)

👤

Provider Name / Credentials Updated January 23, 2015

Recorded as JOHN ZAPAS, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 23, 2015

Surgery (License #D0044227 in MD)

🟢

Initial NPI Registration & Enumeration March 22, 2006

First registered as active Individual Practitioner in NPPES Database.

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Dr. John L Zapas , MD

Professional Overview & Biography Verified Profile Summary

Practice Location & Contact Primary Location

Medicare Profile & Education

Specialty Benchmarks & Practice Insights

Clinical Seniority & Experience Comparison

Performed Procedures & Service Volume

Medical Specialties & State Licenses

Hospital & Practice Group Affiliations

Beebe Physician Network Inc.

Frederick Health Medical Group Llc

Frederick Health Medical Group Llc

Secondary Practice Locations

Practice Associates & Co-Workers

Career & Practice History Timeline

Patient & Community Reviews

NPI Administrative Meta

Mailing Address