DR. CHRISTOPHER G AHNALLEN
NPI 1558429563
Psychologist - Clinical in Boston, MA

Q: What is Christopher Ahnallen's NPI number?

The NPI number for Christopher Ahnallen is 1558429563. It was assigned to this individual provider in the NPPES registry on December 4, 2006.

Q: What is Christopher Ahnallen's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since December 04, 2006PECOS EnrolledAccepts Medicare Assignment

1153 CENTRE ST, BOSTON, MA 02130(617) 277-8107 Get Directions Write a Review

NPPES record last updated: July 14, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Christopher G Ahnallen NPPES

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

DR. CHRISTOPHER G AHNALLEN (NPI 1558429563) is an individual clinical provider in Boston, Massachusetts, licensed in Massachusetts (9013) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1558429563

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. CHRISTOPHER G AHNALLEN

Location Address1153 CENTRE STBoston, MA 02130-3446

Mailing Address1153 Centre StBoston, MA 02130-3446 · (617) 277-8107

Phone(617) 277-8107

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateDecember 4, 2006

Last NPPES UpdateJuly 14, 2016

✔ NPI 1558429563 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in MA · 9013

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

1153 CENTRE ST, Boston, MA 02130

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.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 G Ahnallen 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 ID2163606856

PECOS Enrollment IDI20110404000689

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.

Group psychotherapy 90853

Group psychotherapy involves individuals discussing their issues in a group setting, led by a professional therapist. It provides a supportive environment where members can learn from each other's experiences, gain different perspectives, and develop new ways to handle challenges.

350 services45 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02130 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

$189.86 typical visit price

range $63.72 – $189.86

Typical copayment $47.46 (range $15.93 – $47.46)

Most-billed visit code 99205

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.

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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.

MRS. MARY RAY MAZAKA LICSW

Social Worker (Clinical)

1153 CENTRE ST, 2ND FLOOR
BOSTON, MA 02130

Suffolk County (617) 983-7233

MRS. ELAINE ANN CHARBONNIER NP

Nurse Practitioner (Adult Health)

1153 CENTRE ST, FAULKNER HOSPITAL , DEPT OF PREADMISSION TESTING
BOSTON, MA 02130

Suffolk County (617) 933-4600

HYEJUNG KIM RPH

Pharmacist

1153 CENTRE ST
BOSTON, MA 02130

Suffolk County (851) 404-5397

FAINA NAKHLIS MD

Surgery (Surgical Oncology)

1153 CENTRE ST, FAULKNER BREAST CENTRE
BOSTON, MA 02130

Suffolk County (617) 983-7777

CATHERINE COQUINCO LLAMAS PA

Physician Assistant

1153 CENTRE ST
JAMAICA PLAIN, MA 02130

Suffolk County (617) 983-7132

KRISTIN MARIE STELTER LICSW, MFA

Social Worker (Clinical)

1153 CENTRE ST
BOSTON, MA 02130

Suffolk County (617) 983-4470

DOLORES MARIE SULA PA-C

Physician Assistant

1153 CENTRE ST
BOSTON, MA 02130

Suffolk County (617) 983-7000

DR. STACI R EISENBERG MD

Internal Medicine

1153 CENTRE ST
JAMAICA PLAIN, MA 02130

Suffolk County (617) 983-7025

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 Ahnallen's NPI number?

The NPI number for Christopher Ahnallen is 1558429563. It was assigned to this individual provider in the NPPES registry on December 4, 2006.

Where is Christopher Ahnallen located?

Christopher Ahnallen practices at 1153 Centre St, Boston, MA 02130. The listed phone number is (617) 277-8107.

What is Christopher Ahnallen's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Christopher Ahnallen enrolled in Medicare?

Yes. Christopher Ahnallen 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 Ahnallen accept?

Health plans from Harvard Pilgrim Health Care list Christopher Ahnallen 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.

When was this NPI record last updated?

The NPPES record for Christopher Ahnallen was last updated on July 14, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.