DR. JOHN AHERN
NPI 1699397141
Family Medicine in Cambridge, MA

Active since May 07, 2020PECOS EnrolledAccepts Medicare Assignment
163 GORE ST, CAMBRIDGE, MA 02141(617) 665-3000 Get Directions Write a Review

NPPES record last updated: May 24, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 24, 2023, May 7, 2020 (2 updates tracked since 2020).

About Dr. John Ahern NPPES

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

DR. JOHN AHERN (NPI 1699397141) is an individual family medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (1014642) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, is affiliated with Cambridge Health Alliance, and maintains a secondary practice location in Malden.

NPPES Registry Identity

NPI1699397141
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. JOHN AHERN
Location Address163 GORE STCambridge, MA 02141-1119
Mailing Address195 Canal StMalden, MA 02148-6701
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateMay 7, 2020
Last NPPES UpdateMay 24, 20232 updates tracked since enumeration
NPPES CertifiedMay 24, 2023
NPI 1699397141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in MA · 1014642
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
163 GORE ST, Cambridge, MA 02141

Secondary Practice Location 1

Location 1195 Canal StMalden, MA 02148-6701 · Phone (781) 338-0500

Accepted Insurance

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. John Ahern 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 ID3870950769
PECOS Enrollment IDI20230608001131
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

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.
20 services11 patients

Hospital Affiliations CMS Care Compare

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

Cambridge Health Alliance

Acute Care Hospitals · Cambridge, MA
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number220011
Location1493 Cambridge StreetCambridge, MA 02138 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02141 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.

Psychiatry & Neurology (Psychiatry)
163 GORE ST, EAST CAMBRIDGE CLINIC
CAMBRIDGE, MA 02141
Registered Nurse (Ambulatory Care)
163 GORE ST
CAMBRIDGE, MA 02141
Registered Nurse
163 GORE ST
CAMBRIDGE, MA 02141
Nurse Practitioner
163 GORE ST
CAMBRIDGE, MA 02141
Occupational Therapist
163 GORE ST
CAMBRIDGE, MA 02141
Registered Nurse
163 GORE ST
CAMBRIDGE, MA 02141
Community Health Worker
163 GORE ST
CAMBRIDGE, MA 02141
Social Worker (Clinical)
163 GORE ST
CAMBRIDGE, MA 02141

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 John Ahern's NPI number?

The NPI number for John Ahern is 1699397141. It was assigned to this individual provider in the NPPES registry on May 7, 2020.

Where is John Ahern located?

John Ahern practices at 163 Gore St, Cambridge, MA 02141. The listed phone number is (617) 665-3000.

What is John Ahern's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is John Ahern enrolled in Medicare?

Yes. John Ahern 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.

What insurance does John Ahern accept?

Health plans from Anthem Blue Cross and Blue Shield list John Ahern as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Ahern affiliated with any hospitals?

According to CMS data, John Ahern is affiliated with Cambridge Health Alliance.

When was this NPI record last updated?

The NPPES record for John Ahern was last updated on May 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.