What is Guy Biakop's NPI number?

Guy Biakop's National Provider Identifier (NPI) is 1639747827, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Guy Biakop's specialty?

Guy Biakop is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Guy Biakop located?

Guy Biakop's practice location on file with NPPES is 17053 Foothill Blvd, Fontana, CA 92335-3574.

What is Guy Biakop's phone number?

The practice phone number listed in the NPPES registry for Guy Biakop is (909) 347-1300.

Does Guy Biakop accept Medicare?

Guy Biakop is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Guy Biakop's NPI active?

Yes — Guy Biakop's NPI (1639747827) is active in the NPPES registry as of the last update on 2023-09-29.

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Guy Biakop

NPI 1639747827 · Psychiatric/Mental Health Nurse Practitioner · Fontana, CA

Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Guy Biakop is a Psychiatric/Mental Health Nurse Practitioner provider in Fontana, CA (NPI 1639747827).

Provider details

NPI number: 1639747827
Entity type: Individual
Primary specialty: Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Sex: Male
Sole proprietor: Yes
License: 95058452 (CA)

Specialties & taxonomies

Psychiatric/Mental Health Nurse PractitionerPrimary363LP0808XLicense 95022515 (CA)
Physician Assistants & Advanced Practice Nursing Providers
Registered Nurse163W00000XLicense 95058452 (CA)
Nursing Service Providers

Profile Score

Detailed profile(75/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
5 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
4 documented practice locations
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.

Drug	Part D claims (2024)
Paliperidone Palmitatebrand: Invega Sustenna	19
Olanzapine	15
Trazodone Hcl	12
Aripiprazole	11
Haloperidol Decanoate	11

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$175 across 5 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Practice location

17053 Foothill Blvd

Fontana, CA 92335-3574

Phone: (909) 347-1300

Street-level locationGet directions

More CA providers

Mailing address

17053 Foothill Blvd Bldg B