What is Brett Heslop's NPI number?

Brett Heslop's National Provider Identifier (NPI) is 1942601018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Brett Heslop's specialty?

Brett Heslop is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Brett Heslop located?

Brett Heslop's practice location on file with NPPES is 2295 S Vineyard Ave, Ontario, CA 91761-7925.

What is Brett Heslop's phone number?

The practice phone number listed in the NPPES registry for Brett Heslop is (833) 574-2273.

Does Brett Heslop accept Medicare?

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

Is Brett Heslop's NPI active?

Yes — Brett Heslop's NPI (1942601018) is active in the NPPES registry as of the last update on 2026-02-05.

IndividualActiveAccepts Medicare

Brett Heslop, PA-C

NPI 1942601018 · Medical Physician Assistant · Ontario, CA

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

Brett Heslop, PA-C is a Medical Physician Assistant provider in Ontario, CA (NPI 1942601018).

Provider details

NPI number: 1942601018
Entity type: Individual
Primary specialty: Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Male
Sole proprietor: No
License: PA51907 (CA)

Specialties & taxonomies

Medical Physician AssistantPrimary363AM0700XLicense PA51907 (CA)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Established profile(57/100 index)

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

Registry tenure28% of score
11 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
119 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	55	$58
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	21	$114
Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221	18	$72
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	13	$43
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	12	$151

Typical Medicare-allowed amounts for these services range $43–$151 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Oxycodone Hcl	44	43
Celecoxib	42	35
Pantoprazole Sodium	36	34
Tramadol Hcl	19	19
Gabapentin	16	16
Methocarbamol	13	12

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 , 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.

Practice location

2295 S Vineyard Ave

Ontario, CA 91761-7925

Phone: (833) 574-2273

Street-level locationGet directions

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Mailing address