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

ZACHARY ACHEN MD
NPI 1801546775
Anesthesiology in Boston, MA

Active since March 24, 2022PECOS Enrolled

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 17, 2026, Aug 29, 2022, May 13, 2022 (3 updates tracked since 2022).

About Zachary Achen Md NPPES

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

ZACHARY ACHEN MD (NPI 1801546775) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1026099) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1801546775
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameZACHARY ACHENCredential: MD
Location Address55 FRUIT STBoston, MA 02114-2696
Mailing Address55 Fruit StBoston, MA 02114-2696 · (617) 726-6890
Phone(617) 726-6890
Sole ProprietorNo
Enumeration DateMarch 24, 2022
Last NPPES UpdateJuly 17, 20263 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
✔ NPI 1801546775 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MA · 1026099
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
55 FRUIT ST, Boston, MA 02114
Open in Google Maps ↗

Secondary Practice Location 1

Location 175 Francis StBoston, MA 02115-6110 · Phone (617) 732-8210

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Zachary Achen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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 Zachary Achen's NPI number?

The NPI number for Zachary Achen is 1801546775. It was assigned to this individual provider in the NPPES registry on March 24, 2022.

Where is Zachary Achen located?

Zachary Achen practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-6890.

What is Zachary Achen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Zachary Achen enrolled in Medicare?

Yes. Zachary Achen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Zachary Achen was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.