What is Erin Fallon's NPI number?

Erin Fallon's National Provider Identifier (NPI) is 1255770897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Erin Fallon's specialty?

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

Where is Erin Fallon located?

Erin Fallon's practice location on file with NPPES is 104 Heights Rd # R103, Darien, CT 06820-4119.

What is Erin Fallon's phone number?

The practice phone number listed in the NPPES registry for Erin Fallon is (888) 663-6331.

Does Erin Fallon accept Medicare?

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

Is Erin Fallon's NPI active?

Yes — Erin Fallon's NPI (1255770897) is active in the NPPES registry as of the last update on 2026-02-06.

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Erin Fallon, P.A.

NPI 1255770897 · Physician Assistant · Darien, CT

Erin Fallon, P.A. is a Physician Assistant provider in Darien, CT (NPI 1255770897).

Provider details

NPI number: 1255770897
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: P.A.
Sex: Female
Sole proprietor: No
License: 007281 (CT)

Practice location

104 Heights Rd # R103

Darien, CT 06820-4119

Phone: (888) 663-6331

Fax: (415) 252-7176

Street-level locationGet directions

More CT providers

Mailing address

1 Embarcadero Ctr Ste 1900

San Francisco, CA 94111-3723

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 007281 (CT)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense PA4706 (MA)
Physician Assistants & Advanced Practice Nursing Providers
Medical Physician Assistant363AM0700XLicense MA059522 (PA)
Physician Assistants & Advanced Practice Nursing Providers

Additional practice locations (3)

680 Centre St
Brockton, MA 02302-3308
Phone: (508) 941-7400
Fax: (508) 941-6200
169 Madison Ave Ste 15370
New York, NY 10016-5101
Phone: (844) 484-7362
1200 S Cedar Crest Blvd
Allentown, PA 18103-6202
Phone: (484) 862-3232
Fax: (484) 862-3250

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

Profile Score

Established profile(64/100 index)

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

Registry tenure28% of score
13 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
4 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
45 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)
Telephone Medical Discussion With Physician, 5-10 Minutes99441	25	$45
Telephone Medical Discussion With Physician, 11-20 Minutes99442	20	$73

Typical Medicare-allowed amounts for these services range $45–$73 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 3 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Prednisone	21	19
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	14	14
Mupirocin	13	12

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.

Enumerated: 2013-06-17
Last updated: 2026-02-06
Certified: 2026-02-06

Frequently asked questions

What is Erin Fallon's NPI number?: Erin Fallon's National Provider Identifier (NPI) is 1255770897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Erin Fallon's specialty?: Erin Fallon is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Erin Fallon located?: Erin Fallon's practice location on file with NPPES is 104 Heights Rd # R103, Darien, CT 06820-4119.
What is Erin Fallon's phone number?: The practice phone number listed in the NPPES registry for Erin Fallon is (888) 663-6331.
Does Erin Fallon accept Medicare?: Erin Fallon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Erin Fallon's NPI active?: Yes — Erin Fallon's NPI (1255770897) is active in the NPPES registry as of the last update on 2026-02-06.

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 does (Medicare)

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

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Telephone Medical Discussion With Physician, 5-10 Minutes99441	25	$45
Telephone Medical Discussion With Physician, 11-20 Minutes99442	20	$73

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Prednisone	21	19
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	14	14
Mupirocin	13	12

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (3)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (3)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)