Active NPI 1639131352 Individual Practitioner Male Practitioner

Dr. Jon Trister , MD

Internal Medicine • Worcester, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Jon Trister, MD is a certified Internal Medicine practicing in Worcester, MA. With approximately 51 years of clinical experience since completing medical education in 1975, Dr. Trister delivers high-quality medical care to the local community at 10 WINTHROP ST.

Dr. Trister is affiliated with Vernon Integrative Medical Group Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include injection, triamcinolone acetonide, not otherwise specified, 10 mg, established patient outpatient office visit, routine ekg using at least 12 leads including interpretation and report. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

10 Winthrop St

Worcester, MA 016044435

Telephone 5087549950

Fax 5087542592

Associated Practice Facility / Clinic

🏢 David W. Connors, Md, P.c. Facility NPI 1962408971

Medicare Profile & Education

Medical School

Other

Graduation Year

1975

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Worcester, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

51 Yrs +31.6 yrs vs City Avg

City Avg: 19.4 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

460 Specialists

Practicing in Worcester, MA (7127 Statewide)

Telehealth Adoption Rate

15.9% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

56.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Trister (51 Years) 51 Yrs

Worcester Specialty Average (19.4 Years) 19.4 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
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	524	53	$25.00	$1.00
99213 Established patient office or other outpatient visit, typically 15 minutes	408	190	$195.00	$96.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	352	180	$350.00	$136.86
93000 Routine ekg using at least 12 leads including interpretation and report	63	49	$90.00	$15.30
20610 Aspiration and/or injection of fluid from large joint	58	40	$210.00	$74.59
20550 Injection into tendon or ligament	39	13	$162.00	$48.64
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	38	14	$90.00	$15.51
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	37	13	$25.00	$1.26
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	37	37	$180.00	$142.00
G0008 Administration of influenza virus vaccine	28	28	$35.00	$32.81
90661 Influenza vaccine, trivalent derived from cell cultures	26	26	$35.00	$34.30
17000 Destruction of skin growth	19	11	$230.00	$69.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$300.00	$117.74
99442 Telephone medical discussion with physician, 11-20 minutes	17	14	$100.00	$96.86
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	12	12	$20.00	$17.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	582	229	$195.00	$92.62
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	468	44	$25.00	$1.06
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	368	188	$350.00	$130.76
93000 Routine ekg using at least 12 leads including interpretation and report	70	59	$90.00	$14.88
20610 Aspiration and/or injection of fluid from large joint	46	33	$210.00	$72.81
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	42	12	$90.00	$14.83
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	41	11	$25.00	$1.62
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	33	33	$180.00	$134.94
90756 Vaccine for influenza for injection into muscle	17	17	$50.00	$29.85
99442 Telephone medical discussion with physician, 11-20 minutes	17	17	$100.00	$94.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$300.00	$116.50
G0008 Administration of influenza virus vaccine	16	16	$35.00	$33.84
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	13	$290.00	$186.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	775	267	$195.00	$94.83
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	648	50	$25.00	$1.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	325	175	$255.85	$134.33
93000 Routine ekg using at least 12 leads including interpretation and report	92	63	$90.00	$15.04
90756 Vaccine for influenza for injection into muscle	67	67	$50.00	$29.97
G0008 Administration of influenza virus vaccine	67	67	$35.00	$33.68
20610 Aspiration and/or injection of fluid from large joint	56	37	$210.00	$76.72
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	48	17	$90.00	$15.14
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	48	48	$180.00	$137.69
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	46	15	$25.00	$1.75
20550 Injection into tendon or ligament	45	14	$162.00	$43.98
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$300.00	$117.52
99442 Telephone medical discussion with physician, 11-20 minutes	23	21	$100.00	$94.96
11102 Tangential biopsy of single skin lesion	22	18	$400.00	$108.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	761	50	$25.00	$1.27
99213 Established patient office or other outpatient visit, typically 15 minutes	636	233	$195.00	$95.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	465	215	$230.00	$136.35
93000 Routine ekg using at least 12 leads including interpretation and report	90	71	$90.00	$15.45
20610 Aspiration and/or injection of fluid from large joint	71	38	$210.00	$78.83
G0008 Administration of influenza virus vaccine	57	57	$35.00	$19.53
90756 Vaccine for influenza for injection into muscle	54	54	$50.00	$28.37
99442 Telephone medical discussion with physician, 11-20 minutes	53	42	$100.00	$96.77
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	45	13	$90.00	$15.03
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	44	12	$25.00	$2.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	38	38	$180.00	$140.08
99443 Telephone medical discussion with physician, 21-30 minutes	15	15	$350.00	$137.06
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$300.00	$118.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	915	333	$195.00	$75.11
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	684	56	$25.00	$1.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	459	241	$230.00	$112.85
99442 Telephone medical discussion with physician, 11-20 minutes	282	172	$100.00	$79.36
G2012 Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic	101	82	$250.00	$13.66
20610 Aspiration and/or injection of fluid from large joint	66	46	$210.00	$73.38
93000 Routine ekg using at least 12 leads including interpretation and report	58	51	$90.00	$18.05
99443 Telephone medical discussion with physician, 21-30 minutes	46	39	$350.00	$115.25
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	44	19	$90.00	$14.99
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	33	15	$25.00	$2.06
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	21	21	$180.00	$121.45
G0008 Administration of influenza virus vaccine	20	20	$35.00	$18.95
90756 Vaccine for influenza for injection into muscle	17	17	$50.00	$27.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,855	449	$195.00	$77.88
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	888	79	$25.00	$1.58
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	563	290	$230.00	$113.64
93000 Routine ekg using at least 12 leads including interpretation and report	182	136	$90.00	$17.87
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	138	40	$90.00	$17.52
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	112	27	$25.00	$1.78
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	103	103	$180.00	$121.20
20610 Aspiration and/or injection of fluid from large joint	96	55	$210.00	$69.41
90756 Vaccine for influenza for injection into muscle	93	92	$50.00	$25.49
G0008 Administration of influenza virus vaccine	92	91	$35.00	$17.26
20550 Injection into tendon or ligament	91	17	$162.00	$39.02
98928 Osteopathic manipulative treatment, 7-8 body regions	65	30	$210.00	$73.48
81002 Urinalysis, manual test	42	29	$20.00	$3.33
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	30	13	$250.00	$101.00
94010 Test to measure expiratory airflow and volume	24	23	$175.00	$37.88
J1885 Injection, ketorolac tromethamine, per 15 mg	24	14	$27.20	$0.52
69209 Removal of impacted ear wax by washing	17	16	$100.00	$14.55
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$300.00	$114.19
11102 Tangential biopsy of single skin lesion	14	13	$400.00	$98.21
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	13	12	$40.00	$16.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$350.00	$172.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,919	465	$195.00	$76.02
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,133	91	$25.00	$1.78
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	697	331	$230.00	$112.47
93000 Routine ekg using at least 12 leads including interpretation and report	233	166	$90.00	$17.88
20610 Aspiration and/or injection of fluid from large joint	127	71	$210.00	$67.25
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	118	39	$90.00	$21.66
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	99	24	$25.00	$1.97
90756 Vaccine for influenza for injection into muscle	95	95	$50.00	$22.09
G0008 Administration of influenza virus vaccine	94	94	$35.00	$23.21
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	93	93	$180.00	$122.09
98928 Osteopathic manipulative treatment, 7-8 body regions	54	23	$210.00	$75.92
20550 Injection into tendon or ligament	29	14	$162.00	$38.49
81002 Urinalysis, manual test	27	23	$20.00	$3.41
69209 Removal of impacted ear wax by washing	27	20	$100.00	$15.16
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	24	22	$40.00	$15.53
98927 Osteopathic manipulative treatment, 5-6 body regions	23	14	$195.00	$62.65
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	21	11	$250.00	$95.74
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	19	19	$300.00	$113.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$350.00	$173.37
J1885 Injection, ketorolac tromethamine, per 15 mg	16	13	$27.20	$0.58
17000 Destruction of skin growth	16	12	$230.00	$70.02
17003 Destruction of precancer skin growth, 2-14 growths	15	11	$250.00	$5.60
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	12	$290.00	$151.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	2,097	457	$195.00	$75.17
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,361	101	$25.00	$1.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	545	289	$230.00	$110.32
93000 Routine ekg using at least 12 leads including interpretation and report	245	181	$90.00	$17.51
20610 Aspiration and/or injection of fluid from large joint	159	80	$210.00	$66.33
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	151	48	$90.00	$26.61
20550 Injection into tendon or ligament	124	27	$162.00	$37.46
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	121	121	$180.00	$119.76
G0008 Administration of influenza virus vaccine	101	99	$35.00	$28.66
Q2039 Influenza virus vaccine, not otherwise specified	97	97	$50.00	$22.33
G0444 Annual depression screening, 5 to 15 minutes	68	68	$50.00	$18.76
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	67	22	$25.00	$2.53
98927 Osteopathic manipulative treatment, 5-6 body regions	51	32	$195.00	$61.67
81002 Urinalysis, manual test	40	27	$20.00	$3.43
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	38	17	$250.00	$94.63
J1885 Injection, ketorolac tromethamine, per 15 mg	32	22	$27.20	$0.65
94010 Test to measure expiratory airflow and volume	31	19	$175.00	$26.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$300.00	$111.68
69209 Removal of impacted ear wax by washing	20	16	$100.00	$13.52
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$290.00	$149.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$350.00	$168.85
17000 Destruction of skin growth	15	15	$230.00	$60.82
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	14	13	$40.00	$15.40
G0009 Administration of pneumococcal vaccine	13	13	$35.00	$28.66
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	12	12	$75.00	$73.50
17003 Destruction of precancer skin growth, 2-14 growths	11	11	$250.00	$5.88

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 80587

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

3144941 (MA)

Commercial Insurance / Payer ID Tufts

080587 (MA)

Commercial Insurance / Payer ID Cmhc

431050 (MA)

Commercial Insurance / Payer ID Aetna

735473 101683 (MA)

Commercial Insurance / Payer ID Network

985162 (MA)

Commercial Insurance / Payer ID United Health Care

0400053 (MA)

Commercial Insurance / Payer ID Healthsource

431050PR (MA)

Commercial Insurance / Payer ID Us Health Care

0735473 CAP # 44559 (MA)

Commercial Insurance / Payer ID Blue Cross Blue Shield

J16290 (MA)

Commercial Insurance / Payer ID Fallon

29736 (MA)

Hospital & Practice Group Affiliations

Vernon Integrative Medical Group Llc

141 Massasoit Rd, Worcester, MA 016044435

Vernon Integrative Medical Group Llc

141 Massasoit Rd, Worcester, MA 016043318

Phone: 5087549950

Practice Associates & Co-Workers

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

1 Associated Practitioners

Jolanta Sledzik , FNP-C

Nurse Practitioner - Family

NPI 1699476036

Family Nurse Practitioner (Certified)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 10 WINTHROP ST, WORCESTER, MA 016044435 (Tel: 5087549950)

📍

Updated Business Mailing Address July 08, 2007

Registered at 10 WINTHROP ST, WORCESTER, MA 016044435 (Tel: 5087549950)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as JON TRISTER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #80587 in MA)

🟢

Initial NPI Registration & Enumeration April 06, 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: 1639131352

Entity Type:

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

Enumeration Date: April 06, 2006

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

10 Winthrop St

Worcester, MA 016044435

Phone: 5087549950

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.