DR. JENNIFER A MULLIGAN MD
NPI 1700347242
Family Medicine - Obesity Medicine in Boston, MA

Q: What is Jennifer Mulligan's NPI number?

The NPI number for Jennifer Mulligan is 1700347242. It was assigned to this individual provider in the NPPES registry on March 27, 2019. The provider is also known as Yoon Ji Ahn.

Q: What is Jennifer Mulligan's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Obesity Medicine, with taxonomy code 207QB0002X.

Q: When was this NPI record last updated?

The NPPES record for Jennifer Mulligan was last updated on January 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 27, 2019PECOS EnrolledAccepts Medicare Assignment

55 FRUIT ST, BOSTON, MA 02114(617) 726-2000 Get Directions Write a Review

NPPES record last updated: January 27, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 27, 2026, Sep 13, 2024, May 17, 2023 and 1 more (4 updates tracked since 2021).

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About Dr. Jennifer A Mulligan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JENNIFER A MULLIGAN MD (NPI 1700347242) is an individual obesity medicine provider in Boston, Massachusetts, licensed in New York (334136) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Medical College Of Georgia School Of Medicine (2019).

NPPES Registry Identity

NPI1700347242

Entity TypeIndividualFemale

Primary Taxonomy207QB0002X

Provider Legal NameDR. JENNIFER A MULLIGANCredential: MD

Location Address55 FRUIT STBoston, MA 02114-2696

Mailing Address50 Staniford St Ste 430Boston, MA 02114-2541 · (617) 726-2000

Phone(617) 726-2000

Sole ProprietorYes

Medical School CMSMedical College Of Georgia School Of MedicineGraduated 2019

Enumeration DateMarch 27, 2019

Last NPPES UpdateJanuary 27, 20264 updates tracked since enumeration

NPPES CertifiedJanuary 27, 2026

✔ NPI 1700347242 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyFamily Medicine · Obesity MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QB0002X

License✔ Licensed in NY · 334136

Definition

A family medicine physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.

Also ListedFamily MedicineTaxonomy 207Q00000X · License 125.074597 (IL)

Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X · License 1015157 (MA)

Also ListedPreventive Medicine · Obesity MedicineTaxonomy 2083B0002X · License 80087 (CT)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

55 FRUIT ST, Boston, MA 02114

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Other Names 1

Former Name (1)Yoon Ji Ahn

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jennifer A Mulligan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6406215508

PECOS Enrollment IDI20230707001780, I20260212000172

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

91 services51 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

59 services59 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

26 services25 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Shore Medical Center -

Acute Care Hospitals · Salem, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220035

Location81 Highland AvenueSalem, MA 01970 · Essex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STUTI GIRISH SHROFF MD, MBBS

Pathology (Anatomic Pathology)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 726-2971

NANCY WANG M.D.

Internal Medicine (Hematology & Oncology)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (017) 724-4000

DR. DUSAN HANIDZIAR M.D., PH.D.

Anesthesiology

55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114

Suffolk County (617) 726-3030

JOHN JOSEPH DANKO DO

Physical Medicine & Rehabilitation

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 726-2000

DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.

Internal Medicine (Infectious Disease)

55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114

Suffolk County (617) 724-9248

MS. KELLY ELISHA TRECARTIN NP

Nurse Practitioner (Acute Care)

55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114

Suffolk County (617) 726-7400

JAMIE MARIE ALLEN NP

Nurse Practitioner

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 724-4410

DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.

Internal Medicine (Cardiovascular Disease)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 643-3238

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jennifer Mulligan's NPI number?

The NPI number for Jennifer Mulligan is 1700347242. It was assigned to this individual provider in the NPPES registry on March 27, 2019. The provider is also known as Yoon Ji Ahn.

Where is Jennifer Mulligan located?

Jennifer Mulligan practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.

What is Jennifer Mulligan's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Obesity Medicine, with taxonomy code 207QB0002X.

Is Jennifer Mulligan enrolled in Medicare?

Yes. Jennifer Mulligan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Jennifer Mulligan affiliated with any hospitals?

According to CMS data, Jennifer Mulligan is affiliated with North Shore Medical Center -.

When was this NPI record last updated?

The NPPES record for Jennifer Mulligan was last updated on January 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.