DR. TIMOTHY LAX MD
NPI 1487810156
Internal Medicine - Allergy & Immunology in Brookline, MA

Q: What is Timothy Lax's NPI number?

The NPI number for Timothy Lax is 1487810156. It was assigned to this individual provider in the NPPES registry on August 1, 2008.

Q: What is Timothy Lax's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

Q: When was this NPI record last updated?

The NPPES record for Timothy Lax was last updated on July 7, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since August 01, 2008PECOS EnrolledAccepts Medicare Assignment

1 BROOKLINE PL, SUITE 623, BROOKLINE, MA 02445(617) 278-8100 Get Directions Write a Review

NPPES record last updated: July 7, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Timothy Lax Md NPPES

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

DR. TIMOTHY LAX MD (NPI 1487810156) is an individual allergy & immunology provider in Brookline, Massachusetts, licensed in Massachusetts (248449) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS and is a graduate of Oregon Health Sciences University School Of Medicine (2005).

NPPES Registry Identity

NPI1487810156

Entity TypeIndividualMale

Primary Taxonomy207RA0201X

Provider Legal NameDR. TIMOTHY LAXCredential: MD

Location Address1 BROOKLINE PL, SUITE 623Brookline, MA 02445-7224

Mailing Address1 Brookline Pl, Suite 623Brookline, MA 02445-7224 · (617) 278-8100

Phone(617) 278-8100

Sole ProprietorNo

Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2005

Enumeration DateAugust 1, 2008

Last NPPES UpdateJuly 7, 2015

✔ NPI 1487810156 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Allergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207RA0201X

License✔ Licensed in MA · 248449

Definition

An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.

Also ListedAllergy & ImmunologyTaxonomy 207K00000X · License 248449 (MA)

Also ListedPediatrics · Pediatric Hematology-OncologyTaxonomy 2080P0207X · License 036120469 (IL)

1 BROOKLINE PL, Brookline, MA 02445

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Other Identifiers 2

Other248449MA · Medical License

Other036120469IL · Medical License Number

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Timothy Lax Md 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 ID6800067356

PECOS Enrollment IDI20110914000374

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.

Medicare Billing Reassignments

Medicare enrollment records show Timothy Lax reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Beth Israel Deaconess Medical Center, Inc.

0.7 mi

General Acute Care Hospital

330 BROOKLINE AVE, ST 207
Boston, MA 02215

Reassigned Medicare billing, Massachusetts enrollment
1,477 clinicians in this Medicare group

NPI 1548202641 (617) 667-1961

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

0.7 mi

Internal Medicine

330 BROOKLINE AVE
Boston, MA 02215

Reassigned Medicare billing, Massachusetts enrollment
2,579 clinicians in this Medicare group

NPI 1194765438 (617) 754-9600

Berkshire Allergy Care, P.C.

110 mi

Allergy & Immunology

369 SOUTH ST
Pittsfield, MA 01201

Reassigned Medicare billing, Massachusetts enrollment
Medicare enrollment name: Berkshire Allergy Care PC
4 clinicians in this Medicare group

NPI 1033328786 (413) 443-4826

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

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.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

801 services28 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

294 services20 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

160 services11 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

147 services98 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

117 services18 patients

Test for allergy using combination of methods with drug or biological 95018

An allergy test with a drug or biological involves multiple methods. Skin tests may be performed where small amounts of allergens are introduced to the skin. Blood tests measure your immune system's response to specific allergens. These tests help identify what substances you're allergic to.

110 services33 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

56 services41 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

39 services39 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.

38 services31 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

34 services29 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

30 services30 patients

Test for allergy using ingested items, initial 2 hours 95076

This is a test to identify food allergies. You'll consume specific foods under medical supervision. For the initial 2 hours, reactions like skin rashes, breathing issues, or digestive problems are monitored. It helps pinpoint what foods may be causing allergic reactions.

22 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02445 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

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221

DME-Other DME · category DE017N

2 suppliers40 claims118 services$17.94 avg. paid by Medicare

Injection, immune globulin (hizentra), 100 mg J1559

Treatment-Injections and Infusions (nononcologic) · category RI008N

2 suppliers21 claims7,300 services$9.52 avg. paid by Medicare

Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg J1561

Treatment-Injections and Infusions (nononcologic) · category RI008N

1 supplier13 claims780 services$34.76 avg. paid by Medicare

Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569

Treatment-Injections and Infusions (nononcologic) · category RI008N

3 suppliers50 claims3,790 services$35.64 avg. paid by Medicare

Supplies for external non-insulin drug infusion pump, syringe type cartridge, sterile, each K0552

DME-Other DME · category DE000N

3 suppliers56 claims227 services$2.38 avg. paid by Medicare

Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration Q2052

Treatment-Chemotherapy · category RH012N

1 supplier26 claims26 services$309.69 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

JEROME FEDERSCHNEIDER M.D.

Obstetrics & Gynecology

1 BROOKLINE PL
BROOKLINE, MA 02445

Norfolk County (617) 735-8910

COURTNEY ELIZABETH CATALANO MSN, RN, CPNP

Nurse Practitioner (Pediatrics)

1 BROOKLINE PL, SUITE 327
BROOKLINE, MA 02445

Norfolk County (617) 735-8585

JOSEPH PINES, M.D.,L.L.C

Internal Medicine

1 BROOKLINE PL, SUITE 623
BROOKLINE, MA 02445

Norfolk County (617) 731-0227

LYNN A STAZZONE NP

Registered Nurse (Neuroscience)

1 BROOKLINE PL, BWH PARTNERS MULTIPLE SCLEROSIS CENTER
BROOKLINE, MA 02445

Norfolk County (617) 525-6550

DR. CAROLYN A BERNSTEIN MD

Psychiatry & Neurology (Neurology)

1 BROOKLINE PL, HMFP COMPREHENSIVE HEADACHE CENTER, SUITE 121
BROOKLINE, MA 02445

Norfolk County (617) 278-8080

BRYANN BROMLEY M.D.

Radiology (Diagnostic Radiology)

1 BROOKLINE PL, SUITE 506
BROOKLINE, MA 02445

Norfolk County (617) 739-0245

THOMAS D SHIPP MD

Obstetrics & Gynecology

1 BROOKLINE PL, SUITE 506
BROOKLINE, MA 02445

Norfolk County (617) 739-0245

DR. HANNAH JACKSON PARKER M.D.

Obstetrics & Gynecology

1 BROOKLINE PL, SUITE 305
BROOKLINE, MA 02445

Norfolk County (617) 732-1510

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 Timothy Lax's NPI number?

The NPI number for Timothy Lax is 1487810156. It was assigned to this individual provider in the NPPES registry on August 1, 2008.

Where is Timothy Lax located?

Timothy Lax practices at 1 Brookline Pl Suite 623, Brookline, MA 02445. The listed phone number is (617) 278-8100.

What is Timothy Lax's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.

Is Timothy Lax enrolled in Medicare?

Yes. Timothy Lax 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.

Which organizations bill Medicare for Timothy Lax's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Lax reassigns Medicare benefits to 3 organizations: Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Berkshire Allergy Care, P.C. (Pittsfield, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Timothy Lax's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Timothy Lax was last updated on July 7, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.