Active NPI 1902815103 Individual Practitioner Male Practitioner

Dr. Mark Eisner , MD

Internal Medicine - Gastroenterology • Zephyrhills, FL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Mark Eisner, MD is a certified Internal Medicine - Gastroenterology practicing in Zephyrhills, FL. With approximately 41 years of clinical experience since graduating from George Washington University School Of Medicine in 1985, Dr. Eisner delivers high-quality medical care to the local community at 38135 MARKET SQUARE.

Dr. Eisner is affiliated with Ohi West Medical Group Ii Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, new 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

38135 Market Square

Zephyrhills, FL 33542

Telephone 8137807534

Fax 8137151810

Associated Practice Facility / Clinic

🏢 Florida Medical Clinic Llc Facility NPI 1821055690

Medicare Profile & Education

Medical School

George Washington University School Of Medicine

Graduation Year

1985

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Gastroenterology in Zephyrhills, FL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

41 Yrs +8.2 yrs vs City Avg

City Avg: 32.8 Yrs

State Avg: 28.7 Yrs

Regional Practice Density

9 Specialists

Practicing in Zephyrhills, FL (1556 Statewide)

Telehealth Adoption Rate

55.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

83.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Eisner (41 Years) 41 Yrs

Zephyrhills Specialty Average (32.8 Years) 32.8 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	685	371	$331.40	$124.22
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	108	102	$1027.20	$81.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	83	83	$471.33	$163.73
45380 Biopsy of large bowel using an endoscope	57	56	$1208.67	$146.16
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	47	47	$1288.43	$248.03
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	47	44	$1123.57	$141.96
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	46	45	$966.70	$168.47
45378 Diagnostic exam of large bowel using a flexible endoscope	34	34	$927.50	$173.04
99213 Established patient office or other outpatient visit, typically 15 minutes	32	31	$233.25	$88.22
76981 Elastography ultrasound of organ tissue	26	25	$280.50	$97.87
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	17	17	$1321.65	$97.81
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$315.67	$109.49
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$732.67	$99.89
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$1005.55	$160.66

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	776	412	$273.00	$124.53
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	147	137	$896.00	$77.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	78	78	$415.00	$161.36
45380 Biopsy of large bowel using an endoscope	59	59	$1044.00	$152.51
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	58	55	$929.00	$146.75
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	57	55	$817.00	$178.01
99213 Established patient office or other outpatient visit, typically 15 minutes	42	42	$186.00	$88.40
76981 Elastography ultrasound of organ tissue	40	40	$255.00	$97.56
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	39	37	$1104.00	$251.86
45378 Diagnostic exam of large bowel using a flexible endoscope	26	26	$818.00	$176.51
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	19	17	$1166.00	$131.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$273.00	$110.92
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$818.00	$183.30

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	724	394	$273.20	$126.41
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	136	127	$896.00	$82.06
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	113	113	$415.00	$166.22
99213 Established patient office or other outpatient visit, typically 15 minutes	89	86	$186.98	$90.06
45380 Biopsy of large bowel using an endoscope	76	75	$1044.00	$163.48
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	59	53	$929.00	$140.75
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	52	51	$1104.00	$258.08
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	48	48	$817.00	$186.07
45378 Diagnostic exam of large bowel using a flexible endoscope	43	43	$818.00	$182.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$273.00	$112.19
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	17	$672.00	$120.43
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	15	15	$1166.00	$159.18

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	731	407	$274.17	$127.37
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	181	173	$896.00	$75.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	105	105	$415.00	$169.08
99213 Established patient office or other outpatient visit, typically 15 minutes	102	96	$186.00	$91.32
45380 Biopsy of large bowel using an endoscope	81	80	$1044.00	$171.47
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	78	75	$929.00	$146.02
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	48	48	$1104.00	$256.70
45378 Diagnostic exam of large bowel using a flexible endoscope	43	43	$808.49	$178.71
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	28	28	$817.00	$187.55
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	24	23	$1166.00	$124.52
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	19	17	$672.00	$97.06
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$266.17	$108.29
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$818.00	$191.46

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	749	387	$273.76	$107.68
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	157	149	$896.00	$86.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	104	104	$415.00	$165.91
99213 Established patient office or other outpatient visit, typically 15 minutes	98	96	$186.00	$73.91
45380 Biopsy of large bowel using an endoscope	78	77	$1044.00	$177.54
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	67	63	$929.00	$149.02
45378 Diagnostic exam of large bowel using a flexible endoscope	50	48	$818.00	$189.77
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	48	48	$817.00	$193.78
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	48	47	$1104.00	$264.33
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	24	24	$672.00	$109.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$273.00	$107.94
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	19	19	$1166.00	$139.10

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	760	399	$253.13	$108.35
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	213	203	$814.95	$90.96
99213 Established patient office or other outpatient visit, typically 15 minutes	147	135	$173.14	$74.28
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	108	108	$388.00	$164.61
45380 Biopsy of large bowel using an endoscope	76	76	$960.74	$160.90
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	75	68	$851.35	$158.54
45378 Diagnostic exam of large bowel using a flexible endoscope	67	66	$741.37	$182.85
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	55	54	$753.36	$193.42
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	48	47	$989.48	$266.25
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	33	32	$629.73	$116.47
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	32	23	$235.75	$105.83
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	25	25	$459.44	$205.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$253.75	$108.96
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	19	18	$1085.79	$170.79
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	17	17	$756.24	$197.51
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	13	$174.44	$74.06

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	628	338	$216.36	$106.41
99213 Established patient office or other outpatient visit, typically 15 minutes	253	218	$146.43	$71.94
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	206	193	$686.19	$76.13
45380 Biopsy of large bowel using an endoscope	91	89	$815.98	$163.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	89	89	$332.65	$163.11
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	81	77	$703.59	$143.93
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	70	69	$640.23	$189.57
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	50	50	$218.00	$107.56
45378 Diagnostic exam of large bowel using a flexible endoscope	49	49	$641.90	$182.78
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	40	39	$642.10	$192.52
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	35	35	$863.17	$261.11
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	26	$515.67	$96.73
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	26	18	$148.08	$73.27
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	20	20	$909.20	$163.82
91110 Imaging of digestive tract done from the inside of the digestive tract	13	11	$1667.69	$826.80
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$414.17	$204.31

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	627	350	$215.00	$105.96
99213 Established patient office or other outpatient visit, typically 15 minutes	326	276	$146.00	$71.93
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	230	215	$684.00	$76.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	94	94	$331.00	$162.14
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope	94	88	$702.00	$150.63
45380 Biopsy of large bowel using an endoscope	85	83	$814.00	$181.50
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	80	80	$638.00	$192.11
45378 Diagnostic exam of large bowel using a flexible endoscope	53	51	$640.00	$181.50
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	51	51	$221.92	$107.56
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	48	48	$861.00	$260.86
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	26	25	$514.00	$105.15
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	25	25	$640.00	$190.39
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	13	$147.00	$72.25
99221 Initial hospital inpatient care per day, typically 30 minutes	15	15	$208.00	$102.43

Medical Specialties & State Licenses

CMS Verified: 2021-08-25

Internal Medicine - Gastroenterology Primary Specialty

NUCC Taxonomy Code: 207RG0100X

State License FL ME57600

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

063354200 (FL)

Commercial Insurance / Payer ID Rr Medicare

100005054 (FL)

Hospital & Practice Group Affiliations

Ohi West Medical Group Ii Llc

38101 Market Square Dr, Zephyrhills, FL 335427505

Phone: 8137150195

Ohi West Medical Group Ii Llc

2352 Bruce B Downs Blvd, Wesley Chapel, FL 335449203

Ohi West Medical Group Ii Llc

38103 Market Square Dr, Zephyrhills, FL 335427505

Phone: 8137780414

Ohi West Medical Group Ii Llc

38105 Market Square Dr, Zephyrhills, FL 335427505

Phone: 8138155380

Ohi West Medical Group Ii Llc

38135 Market Square Dr, Zephyrhills, FL 335427505

Ohi West Medical Group Ii Llc

38107 Market Square Dr, Zephyrhills, FL 335427505

Phone: 8139790440

Ohi West Medical Group Ii Llc

2352 Bruce B Downs Blvd, Zephyrhills, FL 335449203

Phone: 8137513375

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Randhir Jesudoss , MD

Internal Medicine - Gastroenterology

NPI 1033418843

Doctor of Medicine (M.D.)

Dr. Madhusudhan Sanaka , MD

Internal Medicine - Gastroenterology

NPI 1679518286

Doctor of Medicine (M.D.)

Dr. Soloman Singh , MD

Internal Medicine - Gastroenterology

NPI 1700981545

Doctor of Medicine (M.D.)

Dr. Tawfik Chami , MD

Internal Medicine - Gastroenterology

NPI 1730198052

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 January 07, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location January 07, 2008

Registered at 38135 MARKET SQUARE, ZEPHYRHILLS, FL 33542 (Tel: 8137807534)

📍

Updated Business Mailing Address January 07, 2008

Registered at 38135 MARKET SQUARE, ZEPHYRHILLS, FL 33542 (Tel: 8137801255)

👤

Provider Name / Credentials Updated January 07, 2008

Recorded as MARK EISNER, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 07, 2008

Internal Medicine (License #ME57600 in FL)

🟢

Initial NPI Registration & Enumeration August 05, 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: 1902815103

Entity Type:

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

Enumeration Date: August 05, 2006

Last Update: August 25, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

38135 Market Square

Zephyrhills, FL 33542

Phone: 8137801255

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.