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Active NPI 1740783554 Individual Practitioner Male Practitioner

Dr. Mark James Johnson , DO

Internal Medicine • Kissimmee, FL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Johnson, DO is a certified Internal Medicine practicing in Kissimmee, FL. With approximately 8 years of clinical experience since graduating from Lake Erie College Of Osteopathic Medicine, Bradenton in 2018, Dr. Johnson delivers high-quality medical care to the local community at 806 W OAK ST.

Dr. Johnson maintains professional affiliations with Osceola Surgical Associates Llc, Hospital Medicine Services Of Fl, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

806 W Oak St

Kissimmee, FL 347416625

Telephone 4074833376
Fax 4072017304

Medicare Profile & Education

Medical School

Lake Erie College Of Osteopathic Medicine, Bradenton

Graduation Year

2018

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Kissimmee, FL

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
8 Yrs -17.2 yrs vs City Avg
City Avg: 25.2 Yrs
State Avg: 26.5 Yrs
Regional Practice Density
75 Specialists

Practicing in Kissimmee, FL (10650 Statewide)

Telehealth Adoption Rate
29.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
77.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Johnson (8 Years) 8 Yrs
Kissimmee Specialty Average (25.2 Years) 25.2 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
124 51 $398.00 $77.34
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
82 43 $572.00 $116.50
99239 Hospital discharge day management, more than 30 minutes
41 40 $592.00 $111.74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
39 39 $1107.00 $170.27
99213 Established patient office or other outpatient visit, typically 15 minutes
38 33 $160.76 $88.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
19 17 $236.53 $125.16
99238 Hospital discharge day management, 30 minutes or less
19 19 $406.00 $79.57

Medical Specialties & State Licenses

CMS Verified: 2021-06-22
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License FL OS16811

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Hospital & Practice Group Affiliations

Hospital Medicine Services Of Fl, Llc

700 W Oak St, Kissimmee, FL 347414996

Phone: 4078462266

Osceola Surgical Associates Llc

806 W Oak St, Kissimmee, FL 347416625

Phone: 4074833376

Hospital Medicine Services Of Fl, Llc

340 Nw Commerce Dr, Lake City, FL 320554709

Phone: 8507199000

Practice Associates & Co-Workers

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

7 Associated Practitioners
Dr. Nicole Brenner , MD

Internal Medicine

NPI 1104212695

Doctor of Medicine (M.D.)

NPI 1225455108

Doctor of Medicine (M.D.)

NPI 1356736235

Doctor of Medicine (M.D.)

Jomaris Centeno Girona

Internal Medicine

NPI 1427611607
Dr. Roger Crouse , MD

Internal Medicine

NPI 1477538197

Doctor of Medicine (M.D.)

Dr. Enrique Serrano , MD

Psychiatry & Neurology - Neurology

NPI 1487775649

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events
📍
Updated Practice Location June 22, 2021

Registered at 806 W OAK ST, KISSIMMEE, FL 347416625 (Tel: 4074833376)

📍
Updated Business Mailing Address June 22, 2021

Registered at 806 W OAK ST, KISSIMMEE, FL 347416625 (Tel: 0748333376)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 22, 2021

Internal Medicine (License #OS16811 in FL)

NPI Profile Active March 18, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location March 18, 2018

Registered at 720 W OAK ST STE 201, KISSIMMEE, FL 347414998 (Tel: 3216971730)

📍
Updated Business Mailing Address March 18, 2018

Registered at 720 W OAK ST STE 201, KISSIMMEE, FL 347414998 (Tel: 3216971730)

👤
Provider Name / Credentials Updated March 18, 2018

Recorded as MARK JOHNSON, DO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 18, 2018

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 18, 2018

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: 1740783554
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 18, 2018
Last Update: June 22, 2021
Sole Proprietor: No

Mailing Address

806 W Oak St

Kissimmee, FL 347416625

Phone: 0748333376

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.