What is Holly Hagen's NPI number?

Holly Hagen's National Provider Identifier (NPI) is 1932537545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Holly Hagen's specialty?

Holly Hagen is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).

Where is Holly Hagen located?

Holly Hagen's practice location on file with NPPES is 1451 Merchant Dr, Algonquin, IL 60102-5917.

What is Holly Hagen's phone number?

The practice phone number listed in the NPPES registry for Holly Hagen is (847) 469-7537.

Does Holly Hagen accept Medicare?

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

Is Holly Hagen's NPI active?

Yes — Holly Hagen's NPI (1932537545) is active in the NPPES registry as of the last update on 2025-09-23.

IndividualActiveAccepts Medicare

Holly Hagen, PSYD

NPI 1932537545 · Clinical Neuropsychologist · Algonquin, IL

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

Holly Hagen, PSYD is a Clinical Neuropsychologist provider in Algonquin, IL (NPI 1932537545).

Provider details

NPI number: 1932537545
Entity type: Individual
Primary specialty: Clinical NeuropsychologistBehavioral Health & Social Service Providers
Credential: PSYD
Sex: Female
Sole proprietor: No
License: 071008672 (IL)

Specialties & taxonomies

Clinical NeuropsychologistPrimary103G00000XLicense 071008672 (IL)
Behavioral Health & Social Service Providers
Clinical Neuropsychologist103G00000XLicense 20042676A (IN)
Behavioral Health & Social Service 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
12 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
8 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
831 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)
Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139	298	$36
Evaluation of Neuropsychological Test, Each Additional Hour96133	297	$99
Psychiatric Diagnostic Evaluation90791	60	$176
Evaluation of Neuropsychological Test, First Hour96132	60	$132
Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138	60	$35
Psychotherapy, 1 Hour90837	56	$140

Typical Medicare-allowed amounts for these services range $35–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.

Practice location

1451 Merchant Dr

Algonquin, IL 60102-5917

Phone: (847) 469-7537

Fax: (847) 469-7540

Street-level locationGet directions

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Mailing address