What is Rachael Nieznajomski's NPI number?

Rachael Nieznajomski's National Provider Identifier (NPI) is 1306152657, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Rachael Nieznajomski's specialty?

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

Where is Rachael Nieznajomski located?

Rachael Nieznajomski's practice location on file with NPPES is 830 Constitution Ave, Littleton, MA 01460.

What is Rachael Nieznajomski's phone number?

The practice phone number listed in the NPPES registry for Rachael Nieznajomski is (978) 287-8990.

Does Rachael Nieznajomski accept Medicare?

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

Is Rachael Nieznajomski's NPI active?

Yes — Rachael Nieznajomski's NPI (1306152657) is active in the NPPES registry as of the last update on 2026-01-29.

IndividualActiveAccepts Medicare

Rachael Nieznajomski, PA

NPI 1306152657 · Physician Assistant · Littleton, MA

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

Rachael Nieznajomski, PA is a Physician Assistant provider in Littleton, MA (NPI 1306152657).

Provider details

NPI number: 1306152657
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA
Sex: Female
Sole proprietor: No
License: PA4023 (MA)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense PA4023 (MA)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(78/100 index)

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

Registry tenure28% of score
15 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
566 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	217	$84
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	66	$103
Urinalysis, Manual Test81002	58	$3
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	56	$117
Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426	48	$35
Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Prednisone	44	44
Doxycycline Monohydrate	33	32
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	32	32
Albuterol Sulfatebrand: Albuterol Sulfate Hfa	29	29
Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro	23	22
Cefpodoxime Proxetil	23	20

Practice location

830 Constitution Ave

Littleton, MA 01460

Phone: (978) 287-8990

Fax: (978) 679-1825

Approximate (ZIP-level) locationGet directions

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Mailing address