What is Thomas Ahearn's NPI number?

Thomas Ahearn's National Provider Identifier (NPI) is 1962872200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Ahearn's specialty?

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

Where is Thomas Ahearn located?

Thomas Ahearn's practice location on file with NPPES is 27650 Ferry Rd Ste 110, Warrenville, IL 60555-3846.

What is Thomas Ahearn's phone number?

The practice phone number listed in the NPPES registry for Thomas Ahearn is (630) 315-6543.

Does Thomas Ahearn accept Medicare?

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

Is Thomas Ahearn's NPI active?

Yes — Thomas Ahearn's NPI (1962872200) is active in the NPPES registry as of the last update on 2025-12-18.

IndividualActiveAccepts Medicare

Thomas Ahearn, PA-C

NPI 1962872200 · Physician Assistant · Warrenville, IL

Thomas Ahearn, PA-C is a Physician Assistant provider in Warrenville, IL (NPI 1962872200).

Provider details

NPI number: 1962872200
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Male
Sole proprietor: No
License: 085006089 (IL)

Practice location

27650 Ferry Rd Ste 110

Warrenville, IL 60555-3846

Phone: (630) 315-6543

Fax: (630) 315-6537

Approximate (ZIP-level) locationGet directions

More IL providers

Mailing address

27650 Ferry Rd Ste 110

Warrenville, IL 60555-3846

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 085006089 (IL)
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistant363A00000XLicense 1128403 (CA)
Physician Assistants & Advanced Practice Nursing Providers

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

Profile Score

Established profile(63/100 index)

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

Registry tenure25% of score
11 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
195 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

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)
Emergency Department Visit With Moderate Level of Medical Decision Making99284	94	$108
Emergency Department Visit With High Level of Medical Decision Making99285	73	$157
Emergency Department Visit With Low Level of Medical Decision Making99283	15	$64
Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010	13	$7

Typical Medicare-allowed amounts for these services range $7–$157 (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 · 2 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen	42	41
Cephalexin	13	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.

$86 across 3 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: 2015-09-29
Last updated: 2025-12-18
Certified: 2025-12-18

Frequently asked questions

What is Thomas Ahearn's NPI number?: Thomas Ahearn's National Provider Identifier (NPI) is 1962872200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Thomas Ahearn's specialty?: Thomas Ahearn is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Thomas Ahearn located?: Thomas Ahearn's practice location on file with NPPES is 27650 Ferry Rd Ste 110, Warrenville, IL 60555-3846.
What is Thomas Ahearn's phone number?: The practice phone number listed in the NPPES registry for Thomas Ahearn is (630) 315-6543.
Does Thomas Ahearn accept Medicare?: Thomas Ahearn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Thomas Ahearn's NPI active?: Yes — Thomas Ahearn's NPI (1962872200) is active in the NPPES registry as of the last update on 2025-12-18.

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)
Emergency Department Visit With Moderate Level of Medical Decision Making99284	94	$108
Emergency Department Visit With High Level of Medical Decision Making99285	73	$157
Emergency Department Visit With Low Level of Medical Decision Making99283	15	$64
Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010	13	$7

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen	42	41
Cephalexin	13	13

Transparency — industry payments

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

$86 across 3 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments