Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. RYAN J SULLIVAN M.D.
NPI 1477873412
Emergency Medicine in Weymouth, MA

Q: What is Ryan Sullivan's NPI number?

The NPI number for Ryan Sullivan is 1477873412. It was assigned to this individual provider in the NPPES registry on June 1, 2010.

Q: What is Ryan Sullivan's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Ryan Sullivan was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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 June 01, 2010PECOS EnrolledAccepts Medicare Assignment

82.78/100

CMS Quality Rating

55 FOGG ROAD, WEYMOUTH, MA 02190(781) 624-8000(781) 878-6750 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 7, 2025, Jul 21, 2022, Jun 15, 2017 (3 updates tracked since 2017).

On this page

About Mr. Ryan J Sullivan M.d. NPPES

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

MR. RYAN J SULLIVAN M.D. (NPI 1477873412) is an individual emergency medicine provider in Weymouth, Massachusetts, licensed in Massachusetts (254184) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and is a graduate of Tufts University School Of Medicine (2010).

NPPES Registry Identity

NPI1477873412

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameMR. RYAN J SULLIVANCredential: M.D.

Location Address55 FOGG ROADWeymouth, MA 02190

Mailing Address55 Fogg RoadWeymouth, MA 02190 · (781) 624-8000 · Fax (781) 878-6750

Phone(781) 624-8000

Fax(781) 878-6750

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 2010

Enumeration DateJune 1, 2010

Last NPPES UpdateJune 18, 20263 updates tracked since enumeration

NPPES CertifiedJune 18, 2026

✔ NPI 1477873412 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in MA · 254184

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

55 FOGG ROAD, Weymouth, MA 02190

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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

Mr. Ryan J Sullivan M.d. 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 ID1355585290

PECOS Enrollment IDI20130917000016

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

305 services299 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

48 services48 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

46 services45 patients

Hospital Affiliations CMS Care Compare 2

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

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220100

Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County

Emergency services Birthing friendly

Upper Connecticut Valley Hospital

Critical Access Hospitals · Colebrook, NH

OwnershipVoluntary non-profit - Private

CMS Certification Number301300

Location181 Corliss LaneColebrook, NH 03576 · Coos County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02190 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.78/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

88.33

Promoting Interoperability

Improvement Activities

Cost

69.53

Other Providers at the Same Location NPPES 13

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

TODD ALAN KERENSKY M.D.

Internal Medicine (Addiction Medicine)

55 FOGG ROAD
WEYMOUTH, MA 02190

Norfolk County (781) 624-8000

ARI LEV MOSKOWITZ MD

Anesthesiology (Critical Care Medicine)

55 FOGG ROAD
WEYMOUTH, MA 02190

Norfolk County (781) 624-8000

DR. MATTHEW D GIANGOLA M.D.

Surgery

55 FOGG ROAD
WEYMOUTH, MA 02190

Norfolk County (781) 792-4136

SOUTH SHORE HOSPITAL INC.

General Acute Care Hospital

55 FOGG ROAD
SOUTH WEYMOUTH, MA 02190

Norfolk County (781) 340-8000

SARAH-ANN FERRARA RD, LDN

Dietitian, Registered

55 FOGG ROAD, DIETITIAN'S OFFICE - EMERSON 2
SOUTH WEYMOUTH, MA 02190

Norfolk County (781) 624-8935

DR. DIANA VANESSA PERRY MD

Pediatrics

55 FOGG ROAD, SOUTH SHORE MEDICAL CENTER
SOUTH WEYMOUTH, MA 02190

Norfolk County (781) 340-8373

MS. GAYLE E DAVIDSON BSN, CRRN, CDE

Registered Nurse (Diabetes Educator)

55 FOGG ROAD, SOUTH SHORE HOSPITAL DIABETES CENTER
SOUTH WEYMOUTH, MA 02190

Norfolk County (781) 624-4164

MAURICE F. LOEFFEL III MD

Emergency Medicine

55 FOGG ROAD
WEYMOUTH, MA 02190

Norfolk County (781) 624-8000

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 Ryan Sullivan's NPI number?

The NPI number for Ryan Sullivan is 1477873412. It was assigned to this individual provider in the NPPES registry on June 1, 2010.

Where is Ryan Sullivan located?

Ryan Sullivan practices at 55 Fogg Road, Weymouth, MA 02190. The listed phone number is (781) 624-8000.

What is Ryan Sullivan's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Ryan Sullivan enrolled in Medicare?

Yes. Ryan Sullivan 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 Ryan Sullivan affiliated with any hospitals?

According to CMS data, Ryan Sullivan is affiliated with South Shore Hospital and Upper Connecticut Valley Hospital.

When was this NPI record last updated?

The NPPES record for Ryan Sullivan was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.