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DR. GABRIEL ARNE BROOKS MD
NPI 1366598955
Internal Medicine - Medical Oncology in Lebanon, NH

Active since January 26, 2007PECOS EnrolledAccepts Medicare Assignment
1 MEDICAL CENTER DR, MEDICAL ONCOLOGY, LEBANON, NH 03756(603) 650-7854 Get Directions Write a Review

NPPES record last updated: September 16, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Gabriel Arne Brooks Md NPPES

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

DR. GABRIEL ARNE BROOKS MD (NPI 1366598955) is an individual medical oncology provider in Lebanon, New Hampshire, licensed in New Hampshire (17807) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2006).

NPPES Registry Identity

NPI1366598955
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. GABRIEL ARNE BROOKSCredential: MD
Location Address1 MEDICAL CENTER DR, MEDICAL ONCOLOGYLebanon, NH 03756-1000
Mailing Address1 Medical Center Dr, Medical OncologyLebanon, NH 03756-1000 · (603) 650-7854
Phone(603) 650-7854
Sole ProprietorNo
Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 2006
Enumeration DateJanuary 26, 2007
Last NPPES UpdateSeptember 16, 2016
✔ NPI 1366598955 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in NH · 17807
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License 17807 (NH)
1 MEDICAL CENTER DR, Lebanon, NH 03756
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and more.Insurance ›

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. Gabriel Arne Brooks 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 ID8729267166
PECOS Enrollment IDI20161031000567
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

2

Medicare enrollment records show Gabriel Brooks reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dartmouth-Hitchcock Clinic
0.2 mi
Internal Medicine
ONE MEDICAL CENTER DR
Lebanon, NH 03756
  • Reassigned Medicare billing, New Hampshire enrollment
  • 2,999 clinicians in this Medicare group
NPI 1548210198 (603) 650-5000
Mary Hitchcock Memorial Hospital
0.2 mi
General Acute Care Hospital
ONE MEDICAL CENTER DR
Lebanon, NH 03756
  • Reassigned Medicare billing, New Hampshire enrollment
  • 2,620 clinicians in this Medicare group
NPI 1023092053 (603) 650-5000

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 5

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
239 services74 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.
49 services40 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
37 services37 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.
20 services19 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Mary Hitchcock Memorial Hospital

Acute Care Hospitals · Lebanon, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300003
Location1 Medical Center DriveLebanon, NH 03756 · Grafton County
Emergency services Birthing friendly

New London Hospital

Critical Access Hospitals · New London, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number301304
Location273 County RoadNew London, NH 03257 · Merrimack County
Emergency services

Valley Regional Hospital

Critical Access Hospitals · Claremont, NH
OwnershipVoluntary non-profit - Private
CMS Certification Number301308
Location243 Elm StreetClaremont, NH 03743 · Sullivan County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03756 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
$174.26 typical visit price
range $57.75 – $174.26
Typical copayment $43.56 (range $14.43 – $43.56)
Most-billed visit code 99205
Established Patient
$101.54 typical visit price
range $18.70 – $142.15
Typical copayment $25.38 (range $4.67 – $35.53)
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.

Referred Medical Equipment & Supplies CMS DME claims 4

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

Capecitabine, oral, 150 mg J8520
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers14 claims504 services$0.33 avg. paid by Medicare
Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers31 claims2,464 services$0.66 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier19 claims19 services$17.97 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers28 claims34 services$11.79 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.

MRS. JANICE M BRENNAN APRN
Nurse Practitioner (Family)
1 MEDICAL CENTER DR, DHMC DEPARTMENT OF OCCUPATION MEDICINE
LEBANON, NH 03756
Grafton County (603) 560-5000
MS. SHELLEY GRACE BENSON R.PH.
Pharmacist (Oncology)
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (603) 650-5417
ELIAS LOUKAS M.D.
Internal Medicine
1 MEDICAL CENTER DR, DHMC SECTION OF HOSPITAL MEDICINE
LEBANON, NH 03756
Grafton County (603) 650-8380
SARAH S SEO MD
Otolaryngology
1 MEDICAL CENTER DR, OTOLARYNGOLOGY
LEBANON, NH 03756
Grafton County (603) 650-8123
DR. SRINIVAS J. IVATURY MD
Colon & Rectal Surgery
1 MEDICAL CENTER DR, COLON & RECTAL SURGERY DEPARTMENT
LEBANON, NH 03756
Grafton County (603) 650-8113
TIMOTHY EARLEY D.O.
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (201) 694-0663
HANNAH ELIZABETH FOOTE BENSIMHON M.D.
Internal Medicine (Cardiovascular Disease)
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (603) 650-5000
EMILE JOSEPH HASAN M.D.
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER DR
LEBANON, NH 03756
Grafton County (603) 650-5000

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 Gabriel Brooks's NPI number?

The NPI number for Gabriel Brooks is 1366598955. It was assigned to this individual provider in the NPPES registry on January 26, 2007.

Where is Gabriel Brooks located?

Gabriel Brooks practices at 1 Medical Center Dr Medical Oncology, Lebanon, NH 03756. The listed phone number is (603) 650-7854.

What is Gabriel Brooks's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Gabriel Brooks enrolled in Medicare?

Yes. Gabriel Brooks 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 Gabriel Brooks's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gabriel Brooks reassigns Medicare benefits to 2 organizations: Dartmouth-Hitchcock Clinic (Lebanon, NH) and Mary Hitchcock Memorial Hospital (Lebanon, NH). 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 Gabriel Brooks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gabriel Brooks accept?

Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Gabriel Brooks 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 Gabriel Brooks affiliated with any hospitals?

According to CMS data, Gabriel Brooks is affiliated with Mary Hitchcock Memorial Hospital, New London Hospital and Valley Regional Hospital.

When was this NPI record last updated?

The NPPES record for Gabriel Brooks was last updated on September 16, 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.