DR. CHRISTOPHER ANTHONY ALONZO M.D., MPH
NPI 1265812226
Internal Medicine in Boston, MA

Active since June 04, 2015PECOS EnrolledAccepts Medicare Assignment
1340 BOYLSTON ST, BOSTON, MA 02215(617) 267-0900 Get Directions Write a Review

NPPES record last updated: October 15, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Christopher Anthony Alonzo M.d., Mph NPPES

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

DR. CHRISTOPHER ANTHONY ALONZO M.D., MPH (NPI 1265812226) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (277140) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1265812226
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHRISTOPHER ANTHONY ALONZOCredential: M.D., MPH
Location Address1340 BOYLSTON STBoston, MA 02215
Mailing Address1340 Boylston StBoston, MA 02215-4302 · (617) 267-0900
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateJune 4, 2015
Last NPPES UpdateOctober 15, 2018
NPI 1265812226 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MA · 277140
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1340 BOYLSTON ST, Boston, MA 02215

Secondary Practice Location 1

Location 11340 Boylston StBoston, MA 02215 · Phone (617) 267-0900

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. Christopher Anthony Alonzo 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 ID6103138706
PECOS Enrollment IDI20221101002749
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 17

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.

Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
109 services61 patients
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.
61 services46 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
60 services37 patients
Creatinine level to test for kidney function or muscle injury 82570
A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.
53 services35 patients
Blood test, lipids (cholesterol and triglycerides) 80061
A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.
52 services44 patients
Urine microalbumin (protein) level 82043
The urine microalbumin level test measures the amount of a protein called albumin in your urine. This test helps to detect early signs of kidney damage. High levels of albumin may suggest your kidneys aren't functioning properly. It's a simple, non-invasive test that involves providing a urine sample.
50 services37 patients

Hospital Affiliations CMS Care Compare

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

Mount Auburn Hospital

Acute Care Hospitals · Cambridge, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220002
Location330 Mount Auburn StreetCambridge, MA 02138 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
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.

Clinic/Center (Federally Qualified Health Center (FQHC))
1340 BOYLSTON ST
BOSTON, MA 02215
Family Medicine
1340 BOYLSTON ST
BOSTON, MA 02215
Dentist
1340 BOYLSTON ST
BOSTON, MA 02215
Dentist
1340 BOYLSTON ST
BOSTON, MA 02215
Social Worker (Clinical)
1340 BOYLSTON ST
BOSTON, MA 02215
Social Worker (Clinical)
1340 BOYLSTON ST
BOSTON, MA 02215
Nurse Practitioner (Women's Health)
1340 BOYLSTON ST
BOSTON, MA 02215
Social Worker (Clinical)
1340 BOYLSTON ST
BOSTON, MA 02215

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 Christopher Alonzo's NPI number?

The NPI number for Christopher Alonzo is 1265812226. It was assigned to this individual provider in the NPPES registry on June 4, 2015.

Where is Christopher Alonzo located?

Christopher Alonzo practices at 1340 Boylston St, Boston, MA 02215. The listed phone number is (617) 267-0900.

What is Christopher Alonzo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Christopher Alonzo enrolled in Medicare?

Yes. Christopher Alonzo 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 Christopher Alonzo accept?

Health plans from Anthem Blue Cross and Blue Shield list Christopher Alonzo 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 Christopher Alonzo affiliated with any hospitals?

According to CMS data, Christopher Alonzo is affiliated with Mount Auburn Hospital.

When was this NPI record last updated?

The NPPES record for Christopher Alonzo was last updated on October 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.