NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1629583596 NP
Verify on CMS → Charles Malak, NP
Family Nurse Practitioner in Palo Alto, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
61
Medicare Part D claims · 48 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$907.17
7 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Charles Malak, NP filed 61 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Palo Alto, California.
- 61
- Part D claims, 2023
- $907.17
- industry payments (Sunshine Act)
- ≥0th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Charles Malak, NP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1629583596), first enumerated 12/13/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 61 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$907.17 in reported industry payments (7 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Charles Malak, NP's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1629583596 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-TRACE · BOOK-MID · PHOTO-ENUM
- NPI-10 1629583596
- ENUM-RECENT 2017
- TAX-MEGA 211K Family Nurse
- RX-TRACE 61
- BOOK-MID 15,115 in California
- PHOTO-ENUM Jennifer Wilson · 2017
Charles Malak, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
61 ≥ 0th percentile 0% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Charles Malak, NP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
61 95% vs specialty avg
Specialty distribution in California
How Family Nurse Practitioner compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1629583596 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | NP |
| Gender | Male |
| NPI Issued | 12/13/2017 |
Hospital and facility affiliations
Facilities where Charles Malak, NP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Bass Medical Group
Palo Alto, CA
Sutter Bay Medical Foundation
Palo Alto, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Charles Malak, NP. Source: openpaymentsdata.cms.gov.
Total received
$907
Largest payer
Edwards Lifesciences Corporation
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Charles Malak, NP. To verify Charles Malak, NP's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
61
Total Claims
$622
Total Drug Cost
48
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 61
- Total Day Supply
- 398
- Generic Drug Cost
- $617
- Opioid Claims
- 46 (75.4% rate)
Patient Demographics
- Average Patient Age
- 71.1 years
- Avg HCC Risk Score
- 0.73
- Gender Split
- 48% female / 52% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Charles Malak, NP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Charles Malak, NP's 61 claims are below the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Malak, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Malak.
One of 15,115 Family Nurse Practitioner providers enrolled in California, 5 are shown here.
Dr. Danielle Aaroe
FAMILY NURSE PRACTIT
Oroville, CA
Joshua Aaron
Mission Hills, CA
Dr. Orly Aaron
NP
San Francisco, CA
Paris Gilbert Russ Aaron
Sacramento, CA
Dr. Alvin Joseph Abad
FNP-C
San Francisco, CA
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Charles Malak, NP's specialty? ▼
Charles Malak, NP specializes in Family Nurse Practitioner and practices in Palo Alto, California. Credentials: NP.
How much does Charles Malak, NP prescribe under Medicare Part D? ▼
In 2023, Charles Malak, NP wrote 61 Medicare Part D claims totaling $622 in drug costs for 48 beneficiaries.
Where is Charles Malak, NP located? ▼
Charles Malak, NP is located at 795 EL CAMINO REAL, Palo Alto, CA, 94301. Phone: (650) 853-2943.
What is Charles Malak, NP's NPI number? ▼
Charles Malak, NP's National Provider Identifier (NPI) is 1629583596, issued on 12/13/2017.
Does Charles Malak, NP prescribe opioids? ▼
Yes, Charles Malak, NP had 46 opioid claims in 2023 with an opioid prescribing rate of 75.4%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Charles Malak, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Charles Malak, NP's most frequently prescribed drugs include Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Malak, NP accept Medicare? ▼
Charles Malak, NP appears in CMS Medicare data with 61 Part D claims and 48 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Malak, NP's credentials? ▼
Charles Malak, NP's NPI is 1629583596 with credentials NP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.