Active NPI 1154768281 Individual Practitioner Male Practitioner

Dr. Oliver Gregory , MD

Internal Medicine • Lynn, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Oliver Gregory, MD is a certified Internal Medicine practicing in Lynn, MA. With approximately 13 years of clinical experience since graduating from University Of Massachusetts Medical School in 2013, Dr. Gregory delivers high-quality medical care to the local community at 496 LYNNFIELD ST.

Dr. Gregory is affiliated with Mass General Brigham Medical Group Northern Massachusetts Inc 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, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, subsequent nursing facility care with moderate level of medical decision making, per day, 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

496 Lynnfield St

Lynn, MA 019041423

Telephone 7815933400

Associated Practice Facility / Clinic

🏢 Northeast Cardiology, Inc. Facility NPI 1992754857

Medicare Profile & Education

Medical School

University Of Massachusetts Medical School

Graduation Year

2013

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Lynn, MA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

13 Yrs -15.6 yrs vs City Avg

City Avg: 28.6 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

20 Specialists

Practicing in Lynn, MA (7127 Statewide)

Telehealth Adoption Rate

40.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

76.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gregory (13 Years) 13 Yrs

Lynn Specialty Average (28.6 Years) 28.6 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	480	266	$409.82	$96.31
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	126	126	$564.88	$131.16
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	95	69	$604.73	$143.38
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	38	14	$456.13	$107.50
99495 Transitional care management services for problem of at least moderate complexity	27	23	$600.07	$137.72
99443 Telephone medical discussion with physician, 21-30 minutes	22	15	$405.91	$116.80
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$276.79	$64.58
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	17	17	$253.00	$54.34
99496 Transitional care management services for problem of high complexity	16	15	$801.69	$194.59
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	13	13	$71.00	$16.40

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	481	269	$495.78	$118.74
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	109	109	$556.32	$131.85
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	93	70	$722.68	$173.75
83036 Hemoglobin A1C level	82	60	$74.00	$9.52
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	64	35	$386.03	$108.32
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	47	35	$390.38	$108.04
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	46	18	$266.00	$63.75
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	45	25	$567.24	$155.22
99496 Transitional care management services for problem of high complexity	41	31	$1053.20	$246.39
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	34	27	$253.00	$53.65
99495 Transitional care management services for problem of at least moderate complexity	33	31	$754.97	$180.47
G0008 Administration of influenza virus vaccine	29	28	$129.00	$33.84
G0009 Administration of pneumococcal vaccine	28	28	$129.00	$33.84
91312 Coronavirus vaccine 13	28	28	$0.01	$0.01
99443 Telephone medical discussion with physician, 21-30 minutes	27	22	$506.41	$121.57
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	27	17	$560.78	$155.18
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	27	27	$668.93	$281.64
90662 Influenza vaccine split virus, preservative free	23	23	$168.43	$70.60
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$350.37	$84.24
0124A Fee covid-19 vac 13 res	18	18	$103.89	$45.13
99442 Telephone medical discussion with physician, 11-20 minutes	12	11	$348.00	$83.96
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	11	11	$710.09	$168.19

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	583	307	$533.15	$132.24
93793 Anticoagulant management of patient taking warfarin	185	18	$48.72	$11.70
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	130	130	$545.90	$135.66
83036 Hemoglobin A1C level	116	76	$74.00	$9.60
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	107	19	$193.83	$65.47
G0008 Administration of influenza virus vaccine	85	85	$106.76	$33.70
90662 Influenza vaccine split virus, preservative free	68	68	$132.59	$68.49
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	55	47	$742.60	$187.64
G0009 Administration of pneumococcal vaccine	42	42	$93.00	$33.91
99443 Telephone medical discussion with physician, 21-30 minutes	41	31	$534.68	$133.19
0054A Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, tris-sucrose formulation; booster dose	37	37	$75.00	$44.92
0124A Fee covid-19 vac 13 res	30	30	$75.00	$44.58
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	29	29	$516.48	$279.03
91312 Coronavirus vaccine 13	29	29	$0.01	$0.01
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	28	24	$546.57	$135.89
99495 Transitional care management services for problem of at least moderate complexity	27	27	$857.48	$207.80
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month	24	12	$161.33	$49.65
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	23	19	$253.00	$55.06
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	23	22	$55.00	$6.48
99213 Established patient office or other outpatient visit, typically 15 minutes	23	23	$378.48	$94.54
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	23	18	$542.17	$136.43
99496 Transitional care management services for problem of high complexity	20	18	$1155.60	$289.55
99487 Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month	17	11	$434.41	$137.86
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	17	17	$44.18	$21.02
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	13	13	$219.62	$132.65
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	12	12	$517.25	$130.37

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	481	287	$475.43	$134.52
99443 Telephone medical discussion with physician, 21-30 minutes	137	85	$461.74	$136.08
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	101	20	$171.34	$42.63
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	101	101	$498.75	$138.45
83036 Hemoglobin A1C level	69	56	$74.00	$9.71
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	66	55	$638.32	$189.34
G0008 Administration of influenza virus vaccine	58	58	$93.21	$19.52
90662 Influenza vaccine split virus, preservative free	47	47	$101.06	$65.17
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	30	26	$253.00	$55.44
99442 Telephone medical discussion with physician, 11-20 minutes	30	29	$315.00	$96.05
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month	27	11	$160.33	$39.02
99495 Transitional care management services for problem of at least moderate complexity	25	24	$817.20	$215.95
99496 Transitional care management services for problem of high complexity	18	15	$1061.33	$292.38
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	17	12	$551.24	$139.26
G0009 Administration of pneumococcal vaccine	16	16	$85.31	$19.53
99213 Established patient office or other outpatient visit, typically 15 minutes	15	14	$327.00	$95.76
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	14	14	$237.69	$125.92
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	12	12	$53.75	$6.82
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	12	12	$36.32	$20.53

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	410	245	$448.35	$114.47
99443 Telephone medical discussion with physician, 21-30 minutes	242	140	$448.05	$114.25
99442 Telephone medical discussion with physician, 11-20 minutes	131	97	$306.15	$78.98
85610 Blood test, clotting time	101	15	$30.00	$4.25
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	88	88	$482.05	$121.02
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	68	17	$171.32	$43.71
G0008 Administration of influenza virus vaccine	66	64	$108.00	$18.92
83036 Hemoglobin A1C level	61	49	$74.00	$9.59
93793 Anticoagulant management of patient taking warfarin	51	15	$49.00	$12.37
90662 Influenza vaccine split virus, preservative free	46	45	$87.78	$58.73
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	33	27	$253.00	$56.16
99441 Telephone medical discussion with physician, 5-10 minutes	29	29	$188.52	$47.97
99213 Established patient office or other outpatient visit, typically 15 minutes	25	25	$307.00	$78.93
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$598.68	$153.44
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	19	18	$36.21	$19.19
G0009 Administration of pneumococcal vaccine	18	18	$108.00	$18.80
99495 Transitional care management services for problem of at least moderate complexity	17	15	$700.00	$194.38
99496 Transitional care management services for problem of high complexity	14	12	$969.07	$256.61
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	12	12	$195.33	$115.92

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	748	312	$435.22	$114.70
83036 Hemoglobin A1C level	153	90	$74.00	$10.57
85610 Blood test, clotting time	133	11	$30.00	$4.28
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	116	116	$475.81	$123.37
G0008 Administration of influenza virus vaccine	79	77	$108.00	$17.53
90662 Influenza vaccine split virus, preservative free	63	61	$93.10	$54.73
99213 Established patient office or other outpatient visit, typically 15 minutes	51	47	$296.69	$77.28
99495 Transitional care management services for problem of at least moderate complexity	46	35	$664.96	$173.83
G0009 Administration of pneumococcal vaccine	45	45	$108.00	$17.94
93000 Routine ekg using at least 12 leads including interpretation and report	40	32	$87.00	$18.03
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	38	32	$582.89	$150.08
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	36	30	$253.00	$56.46
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	24	24	$218.04	$110.08
90670 Pneumococcal vaccine for injection into muscle	21	21	$278.57	$209.59
99496 Transitional care management services for problem of high complexity	18	13	$938.67	$245.20
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	17	17	$697.65	$181.68
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	16	16	$29.81	$18.65

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	636	255	$426.94	$112.21
83036 Hemoglobin A1C level	99	65	$74.00	$11.71
G0008 Administration of influenza virus vaccine	71	70	$106.82	$23.19
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	62	62	$467.42	$122.09
99495 Transitional care management services for problem of at least moderate complexity	61	49	$656.16	$171.84
99213 Established patient office or other outpatient visit, typically 15 minutes	56	55	$292.14	$76.30
90662 Influenza vaccine split virus, preservative free	54	54	$103.00	$52.30
G0009 Administration of pneumococcal vaccine	39	39	$105.54	$23.21
93000 Routine ekg using at least 12 leads including interpretation and report	35	27	$87.00	$17.82
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	30	27	$253.00	$56.32
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	28	28	$648.50	$172.14
90670 Pneumococcal vaccine for injection into muscle	23	23	$254.74	$199.95
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	20	20	$687.80	$173.66
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	18	$569.74	$151.42
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	17	16	$25.29	$18.65
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	16	16	$227.00	$105.59
81002 Urinalysis, manual test	12	11	$25.00	$3.41
82962 Blood glucose (sugar) test performed by hand-held instrument	11	11	$21.00	$3.21

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	512	320	$416.93	$110.54
99213 Established patient office or other outpatient visit, typically 15 minutes	76	71	$282.00	$75.68
99495 Transitional care management services for problem of at least moderate complexity	52	46	$645.38	$169.08
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	39	39	$453.26	$119.76
83036 Hemoglobin A1C level	35	29	$74.00	$13.05
93000 Routine ekg using at least 12 leads including interpretation and report	30	25	$87.00	$17.43
G0008 Administration of influenza virus vaccine	30	30	$102.40	$28.66
G0009 Administration of pneumococcal vaccine	26	26	$102.38	$28.66
90662 Influenza vaccine split virus, preservative free	22	22	$60.00	$48.05
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$634.00	$168.87
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	14	13	$253.00	$55.73
90670 Pneumococcal vaccine for injection into muscle	14	14	$253.00	$185.55
81002 Urinalysis, manual test	13	13	$25.00	$3.43
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	12	12	$144.00	$95.42
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$560.33	$149.15

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 265504

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License RI LP02789

Hospital & Practice Group Affiliations

Mass General Brigham Medical Group Northern Massachusetts Inc

1 Hutchinson Dr, Danvers, MA 019233748

Phone: 9787396950

Mass General Brigham Medical Group Northern Massachusetts Inc

480 Lynnfield St, Lynn, MA 019041419

Phone: 9783543943

Mass General Brigham Medical Group Northern Massachusetts Inc

480 Lynnfield St, Lynn, MA 019041419

Phone: 7815933400

Practice Associates & Co-Workers

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

23 Associated Practitioners

Dr. Edward Braun , MD

Internal Medicine

NPI 1003862798

Doctor of Medicine (M.D.)

Dr. Peter Sheckman , MD

Internal Medicine - Infectious Disease

NPI 1013963883

Doctor of Medicine (M.D.)

Sarah Ziobro , FNP

Nurse Practitioner - Family

NPI 1043945678

Family Nurse Practitioner

Melissa Nee , NP

Nurse Practitioner

NPI 1073235537

Nurse Practitioner

Pamela Caires , NP

Nurse Practitioner

NPI 1205893278

Nurse Practitioner

Dr. Laura Beeghly , MD

Internal Medicine

NPI 1215988100

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 28, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location June 28, 2016

Registered at 496 LYNNFIELD ST, LYNN, MA 019041423 (Tel: 7815933400)

📍

Updated Business Mailing Address June 28, 2016

Registered at 81 HIGHLAND AVE, SALEM, MA 019702714 (Tel: 9785734300)

👤

Provider Name / Credentials Updated June 28, 2016

Recorded as OLIVER GREGORY, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 28, 2016

Internal Medicine (License #265504 in MA)

🟢

Initial NPI Registration & Enumeration May 30, 2013

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: 1154768281

Entity Type:

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

Enumeration Date: May 30, 2013

Last Update: June 28, 2016

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

81 Highland Ave

Salem, MA 019702714

Phone: 9785734300

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.