DR. ADAM C FIELDS M.D., MPH
NPI 1114389368
Surgery - Trauma Surgery in Boston, MA

Active since March 27, 2016PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: December 18, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 18, 2025, Jul 20, 2017, Mar 27, 2016 (3 updates tracked since 2016).

About Dr. Adam C Fields M.d., Mph NPPES

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

DR. ADAM C FIELDS M.D., MPH (NPI 1114389368) is an individual trauma surgery provider in Boston, Massachusetts, licensed in Massachusetts (275548) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1114389368
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameDR. ADAM C FIELDSCredential: M.D., MPH
Location Address55 FRUIT STBoston, MA 02114-2621
Mailing Address75 Francis StBoston, MA 02115-6110 · (617) 732-6861
Sole ProprietorYes
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2016
Enumeration DateMarch 27, 2016
Last NPPES UpdateDecember 18, 20253 updates tracked since enumeration
NPPES CertifiedDecember 18, 2025
NPI 1114389368 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License Licensed in MA · 275548
Definition

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

55 FRUIT ST, Boston, MA 02114

Secondary Practice Location 1

Location 1165 Cambridge StBoston, MA 02114-2783 · Phone (617) 643-2439

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. Adam C Fields M.d., Mph 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 ID9032480082
PECOS Enrollment IDI20240827002874
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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
67 services38 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
38 services37 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
16 services16 patients

Hospital Affiliations CMS Care Compare 2

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

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

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.

Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114

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 Adam Fields's NPI number?

The NPI number for Adam Fields is 1114389368. It was assigned to this individual provider in the NPPES registry on March 27, 2016.

Where is Adam Fields located?

Adam Fields practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (516) 851-3434.

What is Adam Fields's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is Adam Fields enrolled in Medicare?

Yes. Adam Fields 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 Adam Fields affiliated with any hospitals?

According to CMS data, Adam Fields is affiliated with North Shore Medical Center - and Massachusetts General Hospital.

When was this NPI record last updated?

The NPPES record for Adam Fields was last updated on December 18, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.