What is Natalie Chaiser's NPI number?

Natalie Chaiser's National Provider Identifier (NPI) is 1720643562, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Natalie Chaiser's specialty?

Natalie Chaiser is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Natalie Chaiser located?

Natalie Chaiser's practice location on file with NPPES is 11234 Anderson St, Loma Linda, CA 92354-2804.

What is Natalie Chaiser's phone number?

The practice phone number listed in the NPPES registry for Natalie Chaiser is (909) 558-4200.

Does Natalie Chaiser accept Medicare?

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

Is Natalie Chaiser's NPI active?

Yes — Natalie Chaiser's NPI (1720643562) is active in the NPPES registry as of the last update on 2023-06-15.

IndividualActiveAccepts Medicare

Natalie Chaiser

NPI 1720643562 · Family Nurse Practitioner · Loma Linda, CA

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

Natalie Chaiser is a Family Nurse Practitioner provider in Loma Linda, CA (NPI 1720643562).

Provider details

NPI number: 1720643562
Entity type: Individual
Primary specialty: Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Sex: Female
Sole proprietor: Yes
License: 11001886 (FL)

Specialties & taxonomies

Family Nurse PractitionerPrimary363LF0000XLicense 95023913 (CA)
Physician Assistants & Advanced Practice Nursing Providers
Family Nurse Practitioner363LF0000XLicense 11001886 (FL)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(79/100 index)

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

Registry tenure33% of score
7 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 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Atorvastatin Calcium	32	14
Metoprolol Tartrate	30	18
Furosemide	21	21
Mupirocin	19	19
Famotidine	13	12
Methocarbamol	13	12
Carvedilol	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 , 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.

$586 across 7 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

11234 Anderson St

Loma Linda, CA 92354-2804

Phone: (909) 558-4200

Street-level locationGet directions

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Mailing address