What is Caily Irwin's NPI number?

Caily Irwin's National Provider Identifier (NPI) is 1912488966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Caily Irwin's specialty?

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

Where is Caily Irwin located?

Caily Irwin's practice location on file with NPPES is 235 Cypress St Unit 201, Brookline, MA 02445-6776.

What is Caily Irwin's phone number?

The practice phone number listed in the NPPES registry for Caily Irwin is (617) 383-6250.

Does Caily Irwin accept Medicare?

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

Is Caily Irwin's NPI active?

Yes — Caily Irwin's NPI (1912488966) is active in the NPPES registry as of the last update on 2019-03-25.

IndividualActiveAccepts Medicare

Caily Irwin, PA-C

NPI 1912488966 · Surgical Physician Assistant · Brookline, MA

Caily Irwin, PA-C is a Surgical Physician Assistant provider in Brookline, MA (NPI 1912488966).

Provider details

NPI number: 1912488966
Entity type: Individual
Primary specialty: Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Female
Sole proprietor: Yes
License: PA6687 (MA)

Practice location

235 Cypress St Unit 201

Brookline, MA 02445-6776

Phone: (617) 383-6250

Street-level locationGet directions

More MA providers

Mailing address

Cha Cambridge Hospital - Surgery

Cambridge, MA 02139

Specialties & taxonomies

Surgical Physician AssistantPrimary363AS0400XLicense PA6687 (MA)
Physician Assistants & Advanced Practice Nursing Providers

Additional practice locations (1)

850 Harrison Ave Fl 6
Boston, MA 02118-4001
Phone: (617) 414-2243

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

Profile Score

Detailed profile(76/100 index)

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

Registry tenure33% of score
8 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
2 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 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Oxycodone Hcl	17	13

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include 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.

$222 across 4 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.

Enumerated: 2018-08-28
Last updated: 2019-03-25

Frequently asked questions

What is Caily Irwin's NPI number?: Caily Irwin's National Provider Identifier (NPI) is 1912488966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Caily Irwin's specialty?: Caily Irwin is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Caily Irwin located?: Caily Irwin's practice location on file with NPPES is 235 Cypress St Unit 201, Brookline, MA 02445-6776.
What is Caily Irwin's phone number?: The practice phone number listed in the NPPES registry for Caily Irwin is (617) 383-6250.
Does Caily Irwin accept Medicare?: Caily Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Caily Irwin's NPI active?: Yes — Caily Irwin's NPI (1912488966) is active in the NPPES registry as of the last update on 2019-03-25.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Oxycodone Hcl	17	13

Transparency — industry payments

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

$222 across 4 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Frequently asked questions