Active NPI 1538488648 Individual Practitioner Male Practitioner

Dr. Timothy Graham Johnson , MD

Surgery • Nashville, TN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Timothy Johnson, MD is a certified Surgery practicing in Nashville, TN. With approximately 16 years of clinical experience since completing medical education in 2010, Dr. Johnson delivers high-quality medical care to the local community at 3601 THE VANDERBILT CLINIC.

Dr. Johnson is affiliated with Williamson Medical Group, 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, initial hospital care with moderate level of medical decision making, if using time, at least, 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

3601 The Vanderbilt Clinic

Nashville, TN 372320001

Telephone 6153223000

Fax 6159360605

Associated Practice Facility / Clinic

🏢 Vanderbilt University Facility NPI 1952356065

Medicare Profile & Education

Medical School

Other

Graduation Year

2010

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Nashville, TN

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

16 Yrs -5.4 yrs vs City Avg

City Avg: 21.4 Yrs

State Avg: 26.3 Yrs

Regional Practice Density

121 Specialists

Practicing in Nashville, TN (682 Statewide)

Telehealth Adoption Rate

19.0% 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. Johnson (16 Years) 16 Yrs

Nashville Specialty Average (21.4 Years) 21.4 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	41	22	$184.00	$108.76
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	33	31	$348.00	$159.06
99213 Established patient office or other outpatient visit, typically 15 minutes	26	24	$173.00	$80.57
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$184.00	$97.42
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$288.00	$153.42
76937 Ultrasonic guidance for blood vessel access	11	11	$50.00	$12.69
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	11	11	$200.00	$16.36
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	11	11	$520.00	$296.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	36	19	$184.00	$113.23
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	34	34	$348.00	$165.05
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$288.00	$156.38
99213 Established patient office or other outpatient visit, typically 15 minutes	28	27	$173.00	$84.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$184.00	$104.70
49650 Repair of groin hernia using an endoscope	15	15	$867.33	$410.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	13	$255.00	$120.19
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	12	12	$200.00	$16.95
76937 Ultrasonic guidance for blood vessel access	12	12	$50.00	$13.32
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$520.00	$306.74
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	11	11	$40.00	$21.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	61	28	$184.00	$97.03
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	53	48	$348.00	$187.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	35	35	$285.83	$154.38
99213 Established patient office or other outpatient visit, typically 15 minutes	30	29	$169.13	$85.80
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$180.87	$105.40
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	19	19	$516.84	$311.74
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	19	19	$200.00	$17.56
76937 Ultrasonic guidance for blood vessel access	19	19	$50.00	$13.21
47562 Removal of gallbladder using an endoscope	11	11	$1511.00	$586.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$247.27	$121.17
49650 Repair of groin hernia using an endoscope	11	11	$1035.00	$402.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	33	20	$184.00	$98.77
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	24	$348.00	$191.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$160.00	$106.47
99213 Established patient office or other outpatient visit, typically 15 minutes	16	16	$115.00	$81.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$250.00	$159.88
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$500.00	$294.00
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	12	12	$200.00	$16.54
76937 Ultrasonic guidance for blood vessel access	11	11	$50.00	$12.36

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	25	25	$160.00	$97.64
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	24	18	$184.00	$102.08
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$236.00	$132.63
99213 Established patient office or other outpatient visit, typically 15 minutes	16	15	$115.00	$71.45
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	15	15	$348.00	$197.77
99202 New patient office or other outpatient visit, typically 20 minutes	15	15	$110.00	$71.93
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	11	11	$200.00	$18.33
76937 Ultrasonic guidance for blood vessel access	11	11	$50.00	$14.25
47562 Removal of gallbladder using an endoscope	11	11	$1511.00	$633.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99221 Initial hospital inpatient care per day, typically 30 minutes	45	44	$173.00	$95.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$160.00	$100.74
99231 Follow-up hospital inpatient care per day, typically 15 minutes	31	23	$71.00	$37.33
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	28	21	$129.00	$69.09
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	13	$60.00	$41.78
99213 Established patient office or other outpatient visit, typically 15 minutes	12	11	$115.00	$69.25

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	33	21	$129.00	$69.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$160.00	$97.03
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$348.00	$192.88
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$236.00	$129.74
99213 Established patient office or other outpatient visit, typically 15 minutes	16	16	$115.00	$68.22
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	14	14	$500.00	$319.67
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	12	12	$200.00	$17.82
76937 Ultrasonic guidance for blood vessel access	12	12	$50.00	$13.85
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$60.00	$40.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	80	55	$91.00	$37.17
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	47	33	$157.30	$67.61
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	30	30	$446.10	$192.05
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$301.22	$129.44
99291 Critical care, first 30-74 minutes	17	14	$661.00	$203.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$160.00	$94.45
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$228.00	$95.48
36620 Insertion of artery tube for blood sampling or infusion through skin	11	11	$161.82	$47.04

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License TN 53854

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

Williamson Medical Group, Llc

4323 Carothers Pkwy, Franklin, TN 370675920

Phone: 6157948900

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. English Flack , MD

Pediatrics - Pediatric Cardiology

NPI 1003010588

Doctor of Medicine (M.D.)

Daniel Barrett , APRN

Nurse Practitioner - Acute Care

NPI 1003017070

Advanced Practice Registered Nurse

George Anne Raines , APRN

Pediatrics

NPI 1003017088

Advanced Practice Registered Nurse

Dr. Lealani Acosta , MD

Psychiatry & Neurology - Neurology

NPI 1003019902

Doctor of Medicine (M.D.)

Jacquelyn Garner , PNP

Nurse Practitioner - Pediatrics

NPI 1003040999

Pediatric Nurse Practitioner

Dr. Robert Lentz , MD

Internal Medicine - Pulmonary Disease

NPI 1003050972

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 June 10, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location June 10, 2016

Registered at 3601 THE VANDERBILT CLINIC, NASHVILLE, TN 372320001 (Tel: 6153223000)

📍

Updated Business Mailing Address June 10, 2016

Registered at 719 THOMPSON LN, SUITE 30330, NASHVILLE, TN 372043609 (Tel: 6153223000)

👤

Provider Name / Credentials Updated June 10, 2016

Recorded as TIMOTHY JOHNSON, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 10, 2016

Surgery (License #53854 in TN)

🟢

Initial NPI Registration & Enumeration May 28, 2010

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: 1538488648

Entity Type:

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

Enumeration Date: May 28, 2010

Last Update: June 10, 2016

Sole Proprietor: No

Update or Correct Profile

Mailing Address

719 Thompson Ln, Suite 30330

Nashville, TN 372043609

Phone: 6153223000

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.