Active NPI 1083740732 Individual Practitioner Female Practitioner

Dr. Nancy Wei , MD

Internal Medicine • Boston, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Nancy Wei, MD is a certified Internal Medicine practicing in Boston, MA. With approximately 20 years of clinical experience since graduating from Harvard Medical School in 2006, Dr. Wei delivers high-quality medical care to the local community at MASSACHUSETTS GENERAL HOSPITAL.

Dr. Wei maintains professional affiliations with The General Hospital Corporation, Massachusetts General Physicians Organization 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, continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report, follow-up hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

Massachusetts General Hospital
55 Fruit Street

Boston, MA 02114

Telephone 6177264900

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

2006

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Boston, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

20 Yrs +2.6 yrs vs City Avg

City Avg: 17.4 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

2379 Specialists

Practicing in Boston, MA (7127 Statewide)

Telehealth Adoption Rate

24.8% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

75.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Wei (20 Years) 20 Yrs

Boston Specialty Average (17.4 Years) 17.4 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	199	125	$509.21	$127.92
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report	116	65	$173.00	$36.40
99231 Follow-up hospital inpatient care per day, typically 15 minutes	94	49	$206.85	$51.58
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	69	61	$764.74	$188.06
36415 Insertion of needle into vein for collection of blood sample	53	44	$30.09	$8.65
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	53	50	$70.45	$17.35
83036 Hemoglobin A1C level	28	27	$74.00	$9.52
99213 Established patient office or other outpatient visit, typically 15 minutes	25	23	$373.24	$93.26
99443 Telephone medical discussion with physician, 21-30 minutes	20	17	$549.85	$138.02
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	$997.76	$238.51

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	148	96	$490.86	$124.88
99231 Follow-up hospital inpatient care per day, typically 15 minutes	62	31	$161.74	$52.55
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report	56	34	$173.00	$36.75
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	14	$754.29	$193.62
36415 Insertion of needle into vein for collection of blood sample	13	13	$24.00	$8.40
83036 Hemoglobin A1C level	11	11	$74.00	$9.52

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	143	87	$473.74	$125.97
99231 Follow-up hospital inpatient care per day, typically 15 minutes	72	31	$159.83	$41.28
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report	43	30	$173.00	$37.81
36415 Insertion of needle into vein for collection of blood sample	30	25	$24.00	$2.96
99213 Established patient office or other outpatient visit, typically 15 minutes	22	19	$330.45	$82.57
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	13	$694.54	$187.75
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$396.00	$107.42

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	174	106	$422.25	$130.46
36415 Insertion of needle into vein for collection of blood sample	53	41	$24.00	$3.00
83036 Hemoglobin A1C level	41	38	$74.00	$9.71
99213 Established patient office or other outpatient visit, typically 15 minutes	33	31	$303.97	$96.76
99231 Follow-up hospital inpatient care per day, typically 15 minutes	25	13	$160.00	$41.46
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report	24	17	$170.50	$38.55
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	12	$579.33	$188.55
99443 Telephone medical discussion with physician, 21-30 minutes	12	12	$456.58	$142.96

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	106	81	$413.14	$111.84
99213 Established patient office or other outpatient visit, typically 15 minutes	42	34	$265.88	$73.11
99442 Telephone medical discussion with physician, 11-20 minutes	41	39	$210.32	$70.89
36415 Insertion of needle into vein for collection of blood sample	36	32	$24.00	$2.98
83036 Hemoglobin A1C level	35	32	$74.00	$9.63
99443 Telephone medical discussion with physician, 21-30 minutes	34	33	$402.91	$117.96
99231 Follow-up hospital inpatient care per day, typically 15 minutes	28	14	$157.00	$43.46
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report	20	16	$161.00	$40.01
G0008 Administration of influenza virus vaccine	14	14	$108.00	$19.00
90662 Influenza vaccine split virus, preservative free	12	12	$88.50	$60.47
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$617.36	$157.72

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	146	96	$415.36	$108.59
99213 Established patient office or other outpatient visit, typically 15 minutes	124	88	$238.41	$65.67
99231 Follow-up hospital inpatient care per day, typically 15 minutes	102	36	$154.65	$42.79
83036 Hemoglobin A1C level	52	43	$74.00	$10.57
99221 Initial hospital inpatient care per day, typically 30 minutes	22	17	$400.86	$110.30

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	142	104	$417.15	$110.42
99213 Established patient office or other outpatient visit, typically 15 minutes	138	90	$245.73	$67.87
99231 Follow-up hospital inpatient care per day, typically 15 minutes	111	33	$152.88	$42.17
83036 Hemoglobin A1C level	65	49	$74.00	$11.75
99221 Initial hospital inpatient care per day, typically 30 minutes	29	21	$392.17	$109.18

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	224	141	$415.77	$114.38
99231 Follow-up hospital inpatient care per day, typically 15 minutes	117	45	$147.69	$41.29
83036 Hemoglobin A1C level	77	61	$74.00	$13.05
99213 Established patient office or other outpatient visit, typically 15 minutes	38	35	$265.13	$72.72
99221 Initial hospital inpatient care per day, typically 30 minutes	33	24	$374.33	$106.57

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA L-228187

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.

Hospital & Practice Group Affiliations

The General Hospital Corporation

100 Everett Ave, Chelsea, MA 021502309

Phone: 6178874600

Massachusetts General Physicians Organization Inc

50 Staniford St, Boston, MA 021142517

The General Hospital Corporation

55 Fruit St, Boston, MA 021142621

Phone: 6177262000

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Practice Associates & Co-Workers

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

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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 MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BOSTON, MA 02114 (Tel: 6177264900)

📍

Updated Business Mailing Address July 08, 2007

Registered at MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BOSTON, MA 02114 (Tel: 6177264900)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as NANCY WEI, M.D.

🎓

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

Internal Medicine (License #L-228187 in MA)

🟢

Initial NPI Registration & Enumeration February 26, 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: 1083740732

Entity Type:

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

Enumeration Date: February 26, 2007

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Massachusetts General Hospital, 55 Fruit Street

Boston, MA 02114

Phone: 6177264900

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.