Active NPI 1386852747 Individual Practitioner Male Practitioner

Dr. Nathan J Abare , MD

Internal Medicine • Springfield, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Nathan Abare, MD is a certified Internal Medicine practicing in Springfield, MA. With approximately 21 years of clinical experience since graduating from University Of Massachusetts Medical School in 2005, Dr. Abare delivers high-quality medical care to the local community at 100 WASON AVE STE 240.

Dr. Abare is affiliated with Baystate Medical Practices Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service;. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

100 Wason Ave Ste 240

Springfield, MA 011071179

Telephone 4137949223

Fax 4137948361

Associated Practice Facility / Clinic

🏢 Baystate Medical Practices, Inc Facility NPI 1548205909

Medicare Profile & Education

Medical School

University Of Massachusetts Medical School

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Springfield, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs +0.7 yrs vs City Avg

City Avg: 20.3 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

289 Specialists

Practicing in Springfield, MA (7127 Statewide)

Telehealth Adoption Rate

16.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

55.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Abare (21 Years) 21 Yrs

Springfield Specialty Average (20.3 Years) 20.3 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
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	347	347	$404.65	$166.76
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	214	207	$268.89	$127.53
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	91	91	$265.57	$111.62
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	64	21	$84.09	$32.16
99213 Established patient office or other outpatient visit, typically 15 minutes	63	62	$190.87	$88.99
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	63	63	$509.37	$215.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	62	62	$359.94	$176.91

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	242	240	$250.00	$97.43
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	172	172	$380.00	$132.70
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	86	86	$337.00	$140.28
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	83	83	$255.06	$129.36
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	78	78	$393.40	$169.53
99213 Established patient office or other outpatient visit, typically 15 minutes	62	61	$173.00	$66.57
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	35	17	$79.00	$31.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	22	$346.82	$176.09
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$248.00	$83.53
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	17	17	$480.00	$180.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	295	295	$380.00	$137.23
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	134	130	$250.00	$99.34
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	48	48	$480.00	$181.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	41	41	$337.00	$146.96
99441 Telephone medical discussion with physician, 5-10 minutes	14	13	$54.00	$54.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99441 Telephone medical discussion with physician, 5-10 minutes	180	122	$54.00	$54.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	174	174	$261.00	$138.45
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	168	124	$250.00	$134.55
99213 Established patient office or other outpatient visit, typically 15 minutes	110	80	$173.00	$95.52
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	62	13	$93.00	$42.63
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	57	48	$337.00	$189.01
99442 Telephone medical discussion with physician, 11-20 minutes	48	43	$164.00	$96.05
G0008 Administration of influenza virus vaccine	29	29	$27.00	$19.53
90662 Influenza vaccine split virus, preservative free	22	22	$108.00	$65.26
G0009 Administration of pneumococcal vaccine	21	21	$27.00	$19.48
99443 Telephone medical discussion with physician, 21-30 minutes	18	17	$242.00	$136.08
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$380.00	$175.36
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	16	16	$31.00	$6.96
90670 Pneumococcal vaccine for injection into muscle	11	11	$280.00	$240.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99441 Telephone medical discussion with physician, 5-10 minutes	245	161	$69.06	$45.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	145	119	$244.59	$114.02
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	141	141	$261.00	$121.76
99213 Established patient office or other outpatient visit, typically 15 minutes	105	87	$165.63	$75.57
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	97	15	$93.00	$43.60
99442 Telephone medical discussion with physician, 11-20 minutes	74	55	$143.03	$74.21
G0008 Administration of influenza virus vaccine	47	46	$27.00	$19.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	42	39	$328.36	$150.25
90662 Influenza vaccine split virus, preservative free	39	38	$64.00	$60.67
99443 Telephone medical discussion with physician, 21-30 minutes	15	14	$177.60	$100.81
G0009 Administration of pneumococcal vaccine	14	14	$27.00	$18.89
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	11	11	$386.00	$177.85
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	11	11	$31.00	$9.14

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	326	200	$242.00	$113.12
99213 Established patient office or other outpatient visit, typically 15 minutes	230	158	$164.00	$76.92
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	128	128	$261.00	$121.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	79	60	$326.00	$151.83
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	67	12	$93.00	$43.27
G0008 Administration of influenza virus vaccine	50	48	$27.00	$17.47
90662 Influenza vaccine split virus, preservative free	32	32	$64.00	$54.89
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	22	22	$386.00	$178.33
G0009 Administration of pneumococcal vaccine	19	19	$27.00	$17.81
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	16	16	$36.00	$18.65
90670 Pneumococcal vaccine for injection into muscle	14	14	$280.00	$210.31
69209 Removal of impacted ear wax by washing	14	12	$46.00	$20.07
83036 Hemoglobin A1C level	12	12	$30.00	$10.57

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	354	203	$242.00	$111.68
99213 Established patient office or other outpatient visit, typically 15 minutes	243	168	$164.00	$75.25
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	95	95	$261.00	$122.09
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	94	14	$93.00	$43.99
G0008 Administration of influenza virus vaccine	75	73	$27.00	$23.21
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	74	57	$326.00	$151.58
90662 Influenza vaccine split virus, preservative free	56	56	$64.00	$51.37
G0009 Administration of pneumococcal vaccine	31	31	$27.00	$23.21
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	22	22	$119.00	$105.59
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	21	21	$386.00	$179.26
93000 Routine ekg using at least 12 leads including interpretation and report	17	17	$52.00	$17.88
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	14	14	$33.00	$23.57

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	351	202	$242.00	$109.79
99213 Established patient office or other outpatient visit, typically 15 minutes	263	174	$164.00	$74.82
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	132	84	$326.00	$146.31
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	98	13	$93.00	$43.49
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	89	89	$261.00	$119.76
G0008 Administration of influenza virus vaccine	85	83	$27.00	$26.46
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	69	69	$36.00	$18.65
G0009 Administration of pneumococcal vaccine	41	41	$27.00	$26.46
90670 Pneumococcal vaccine for injection into muscle	24	24	$280.00	$185.01
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	22	22	$110.09	$89.75
93000 Routine ekg using at least 12 leads including interpretation and report	22	21	$52.00	$17.63
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	21	17	$121.00	$55.77
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	18	18	$386.00	$176.33
90662 Influenza vaccine split virus, preservative free	15	15	$64.00	$48.05
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	13	13	$286.00	$171.07
90471 Administration of 1 vaccine	11	11	$45.00	$26.80

Medical Specialties & State Licenses

CMS Verified: 2025-06-04

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 235479

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.

Hospitalist

NUCC Taxonomy Code: 208M00000X

State License MA 235479

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Hospital & Practice Group Affiliations

Baystate Medical Practices Inc

759 Chestnut St, Springfield, MA 011991001

Phone: 4137945439

Baystate Medical Practices Inc

100 Wason Ave, Springfield, MA 011071381

Phone: 4137886139

Baystate Medical Practices Inc

280 Chestnut St, Springfield, MA 011991001

Practice Associates & Co-Workers

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

7 Associated Practitioners

Anika Opp-Harris , PA-C

Physician Assistant

NPI 1134138563

Physician Assistant (Certified)

Vaibhav Dingare , APRN, FNP-BC

Nurse Practitioner - Family

NPI 1134625684

Advanced Practice Registered Nurse, Family Nurse Practitioner (Board Certified)

Amy Corsetti , NP

Nurse Practitioner - Adult Health

NPI 1629204987

Nurse Practitioner

Soymi Serrano , NP

Nurse Practitioner - Adult Health

NPI 1669982484

Nurse Practitioner

Dr. Oren Brody , DO

Internal Medicine

NPI 1700091998

Doctor of Osteopathic Medicine (D.O.)

Terri Gardner , APRN

Nurse Practitioner - Adult Health

NPI 1780747881

Advanced Practice Registered Nurse

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location June 04, 2025

Registered at 100 WASON AVE STE 240, SPRINGFIELD, MA 011071179 (Tel: 4137949223)

📍

Updated Practice Location February 09, 2022

Registered at 759 CHESTNUT ST, SPRINGFIELD, MA 011071619 (Tel: 4137946297)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 09, 2022

Hospitalist (License #235479 in MA)

✅

NPI Profile Active November 15, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location November 15, 2016

Registered at 470 GRANBY RD, SUITE 1, SOUTH HADLEY, MA 010753218 (Tel: 4135333926)

📍

Updated Business Mailing Address November 15, 2016

Registered at 280 CHESTNUT ST, 2ND FLOOR, SPRINGFIELD, MA 011991001 (Tel: 4137945700)

👤

Provider Name / Credentials Updated November 15, 2016

Recorded as NATHAN ABARE, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 15, 2016

Internal Medicine (License #235479 in MA)

🟢

Initial NPI Registration & Enumeration May 18, 2007

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: 1386852747

Entity Type:

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

Enumeration Date: May 18, 2007

Last Update: June 04, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

280 Chestnut St, 2nd Floor

Springfield, MA 011991001

Phone: 4137945700

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.