Active NPI 1770059248 Individual Practitioner Female Practitioner

Melissa Ann Ayer , CNP, RN

Nurse Practitioner • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Melissa Ayer, CNP, RN is a certified Nurse Practitioner practicing in Boston, MA. With approximately 8 years of clinical experience since completing medical education in 2018, Melissa Ayer delivers high-quality medical care to the local community at 55 FRUIT STREET.

Melissa Ayer maintains professional affiliations with Massachusetts General Physicians Organization Inc, Mass General Brigham Medical Group Suburban Massachusetts Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, application of chemical to stop tissue regrowth in wound, 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

55 Fruit Street

Boston, MA 022411909

Telephone 6177269527

Associated Practice Facility / Clinic

🏢 Mgh Outpatient Pharmacy Facility NPI 1902991573

Medicare Profile & Education

Medical School

Other

Graduation Year

2018

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Boston, MA

Experienced Practitioner (5-10 Yrs)

Practitioner Clinical Experience

8 Yrs -2.2 yrs vs City Avg

City Avg: 10.2 Yrs

State Avg: 12.5 Yrs

Regional Practice Density

972 Specialists

Practicing in Boston, MA (3545 Statewide)

Telehealth Adoption Rate

24.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

76.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ayer (8 Years) 8 Yrs

Boston Specialty Average (10.2 Years) 10.2 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2023)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	107	94	$241.09	$59.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	36	$341.34	$84.85
17250 Application of chemical to stop tissue regrowth in wound	37	28	$222.11	$34.83
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	34	34	$463.76	$129.75
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	13	$160.14	$32.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	103	93	$222.11	$60.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	49	44	$317.65	$88.03
17250 Application of chemical to stop tissue regrowth in wound	42	28	$205.33	$34.75
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	27	22	$441.11	$134.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	15	$144.50	$33.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	111	88	$214.64	$62.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	43	38	$306.40	$92.49
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	43	15	$350.00	$79.87
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	32	12	$225.00	$60.52
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	31	19	$350.00	$79.87
17250 Application of chemical to stop tissue regrowth in wound	28	23	$201.86	$34.72
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	25	11	$225.00	$60.52
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	15	$426.53	$136.25
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	17	11	$475.00	$118.37
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	13	$139.94	$33.37

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	136	110	$298.25	$73.08
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	120	56	$275.00	$81.17
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	72	43	$400.00	$119.57
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	54	17	$225.00	$61.91
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	44	22	$225.00	$61.91
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	42	40	$415.10	$101.99
17250 Application of chemical to stop tissue regrowth in wound	41	28	$203.98	$35.50
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	40	19	$275.00	$81.63
99213 Established patient office or other outpatient visit, typically 15 minutes	24	13	$207.46	$47.82
99441 Telephone medical discussion with physician, 5-10 minutes	12	11	$60.50	$23.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	205	85	$305.76	$119.51
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	102	42	$275.00	$80.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	16	$296.00	$71.94

Medical Specialties & State Licenses

CMS Verified: 2025-11-25

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License MA RN237363

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner - Family

NUCC Taxonomy Code: 363LF0000X

State License MA RN237363

Definition to come...

Hospital & Practice Group Affiliations

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Mass General Brigham Medical Group Suburban Massachusetts Inc

2014 Washington St, Newton, MA 024621607

Phone: 6172436000

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Kui Toh Leong , MD

Internal Medicine - Cardiovascular Disease

NPI 1003007121

Doctor of Medicine (M.D.)

Jacqueline Bango , LICSW

Social Worker - Clinical

NPI 1003329095

Licensed Independent Clinical Social Worker

Sara Grosslein , PA

Physician Assistant

NPI 1003486499

Physician Assistant

Dr. Jeffrey Ellenbogen , MD

Psychiatry & Neurology - Neurology

NPI 1003856535

Doctor of Medicine (M.D.)

Dr. Nancy Harris , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1003889445

Doctor of Medicine (M.D.)

Dr. Stanley Shaw , MD PHD

Internal Medicine - Cardiovascular Disease

NPI 1003921636

MDPHD

Career & Practice History Timeline

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

11 Historical Events

📍

Updated Practice Location November 25, 2025

Registered at 55 FRUIT STREET, BOSTON, MA 022411909 (Tel: 6177269527)

📍

Updated Business Mailing Address November 25, 2025

Registered at MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION, 55 FRUIT STREET, BOSTON, MA 022419095 (Tel: 6177245058)

📍

Updated Practice Location November 13, 2019

Registered at LAHEY HOSPITAL AND MEDICAL CENTER, 41 MALL ROAD, BURLINGTON, MA 01805 (Tel: 7817448085)

📍

Updated Business Mailing Address November 13, 2019

Registered at LAHEY PROVIDER ENROLLMENT DEPARTMENT, 41 MALL ROAD, BURLINGTON, MA 018050001 (Tel: 7817448085)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 13, 2019

Nurse Practitioner (License #RN237363 in MA)

✅

NPI Profile Active October 22, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location October 22, 2018

Registered at 496 LYNNFIELD ST STE 104, LYNN, MA 019041423 (Tel: 7815869300)

📍

Updated Business Mailing Address October 22, 2018

Registered at PO BOX 1163, STRATHAM, NH 038851163 (Tel: 7815869300)

👤

Provider Name / Credentials Updated October 22, 2018

Recorded as MELISSA AYER, CNP, RN

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 22, 2018

Nurse Practitioner (License #RN237363 in MA)

🟢

Initial NPI Registration & Enumeration October 22, 2018

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1770059248

Entity Type:

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

Enumeration Date: October 22, 2018

Last Update: November 25, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Massachusetts General Physicians Organization, 55 Fruit Street

Boston, MA 022419095

Phone: 6177245058

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.