Allison D Brooks , ACNP
Registered Nurse • Pasadena, CA
393 E Walnut St
Pasadena, CA 911880001
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on November 24, 2009; this date does not establish years in practice.
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Published CMS data list 67 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 17 prescription fills, including refills.
- Metoprolol Tartrate — 14 prescription fills, including refills.
- Furosemide — 14 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 75% of clinicians listed under Registered Nurse in California (2024, 59 clinicians with data). Median for this group: 189. Middle half: 72 to 888.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 119 in 2020 to 67 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
393 E Walnut St
Pasadena, CA 911880001
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Southern California Permanente Medical Group. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of California, Geffen School Of Medicine
2009
What Public CMS Data Show
Registered Nurse: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
80 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$407 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $62.25 across 3 records.
By nature of payment
- Education: $36.00 across 2 records.
- Food and Beverage: $26.25 across 1 record.
Reporting-company totals
- Medtronic, Inc.: $36.00 across 2 records.
- Boston Scientific Corporation: $26.25 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2009
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Allison Brooks has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Allison Brooks as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Pasadena and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Registered Nurse in California (2024, 59 clinicians with data). Median for this group: 189. Middle half: 72 to 888.
Too few clinicians listed under Registered Nurse in Pasadena have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 85% of clinicians listed under Registered Nurse in California (2024, 59 clinicians with data). Median for this group: $9,084. Middle half: $1,306 to $74,380.
Too few clinicians listed under Registered Nurse in Pasadena have Medicare Part D data for 2024 to compare.
63 active clinicians are listed under Registered Nurse with a practice address in Pasadena, CA (14,604 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Pasadena
0% of these 63 clinicians have the CMS telehealth indicator.
11.1% of these 63 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 44% from 119 in 2020 to 67 in 2024.
- 2020: 119
- 2021: 170
- 2022: 172
- 2023: 84
- 2024: 67
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30-day fills
30-day fills decreased 51% from 164 in 2020 to 80 in 2024.
- 2020: 164
- 2021: 217
- 2022: 255
- 2023: 121
- 2024: 80
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Part D drug cost
Part D drug cost decreased 61% from $1,047 in 2020 to $407 in 2024.
- 2020: $1,047
- 2021: $1,783
- 2022: $1,788
- 2023: $696
- 2024: $407
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 94% from $1,024.08 in 2022 to $62.25 in 2025.
- 2022: $1,024.08
- 2023: $1,162.99
- 2024: $277.71
- 2025: $62.25
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $62.25.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
|
ACCOLADE SR | General | $26.25 |
| Medtronic, Inc. |
Education
In-kind items and services
|
— | General | $18.00 |
| Medtronic, Inc. |
Education
In-kind items and services
|
— | General | $18.00 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 17 | 750 | $66.62 | — |
| Metoprolol Tartrate | Metoprolol Tartrate | 14 | 450 | $58.07 | — |
| Furosemide | Furosemide | 14 | 332 | $41.72 | — |
| Gabapentin | Gabapentin | 11 | 412 | $127.57 | — |
| Methocarbamol | Methocarbamol | 11 | 200 | $112.99 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-08-20NUCC Taxonomy Code: 163W00000X
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20161130001228
CA
4385823004
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Southern California Permanente Medical Group
9961 Sierra Ave, Fontana, CA 923356720
Phone: 9094275000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant - Surgical
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 393 E WALNUT ST, PASADENA, CA 911880001 (Tel: 8774574772)
Registered at 393 E WALNUT ST, PASADENA, CA 911884772 (Tel: 8774574772)
Registered Nurse (license number reported to NPPES: CA 455670)
Registered at 10465 SPARROW CT, MORENO VALLEY, CA 925572781 (Tel: 5035363827)
Registered at 10465 SPARROW CT, MORENO VALLEY, CA 925572781 (Tel: 5035363827)
NPI status registered as active in NPPES database
Registered at 11234 ANDERSON ST, LOMA LINDA, CA 923542804 (Tel: 9095585845)
Registered at 11234 ANDERSON ST, LOMA LINDA, CA 923542804 (Tel: 9095585845)
Recorded as ALLISON BROOKS, ACNP
Nurse Practitioner (license number reported to NPPES: OR 201050037NP)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
393 E Walnut St
Pasadena, CA 911884772
Phone: 8774574772