DR. EARL S. NIELSEN (PH.D.) – Clinical Psychologist, NPI 1043338593

DR. EARL S. NIELSEN (PH.D.) is a healthcare provider. based in Reno, Nevada. specializing in CLINICAL PSYCHOLOGIST. They hold the professional credentials PH.D.. They hold a License No. PY099 (NV). The NPI Number for DR. EARL S. NIELSEN (PH.D.) is 1043338593

Main info

Male
Sole Proprietor
47 Years Of Experience
Accepts Medicare Assignment
Name
DR. EARL S. NIELSEN (PH.D.)
NPI
1043338593
Phone
(775) 323-6766
Address
834 WILLOW ST
Enumeration Date
26 March 2007
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7753295162
Graduation Year
1979 (47 years ago)
PAC ID
8527284645
Group Practice PAC ID
6507761897
Professional Enrollment ID
I20191016000996
Address ID
NV895021117RE1715XSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

158 CLINICAL PSYCHOLOGIST in NV

Provider Addresses for DR. EARL S. NIELSEN (PH.D.)

  • 834 WILLOW ST

    RENO, NV 895021304

    Phone: (775) 323-6766

    Fax: (775) 323-2716

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2014-07-28

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20140728000143IClinical PsychologistNVTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 89502)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6507761897View full group profile
NameSpecialtyState
Family PracticeID
O P T O M E T R YNV
-CA
O P T O M E T R YNV
Nurse PractitionerNV
Internal MedicinePA
Nurse PractitionerNV
Internal Medicine, Geriatric MedicineNV
Physician AssistantNV
Registered Dietitian Or Nutrition ProfessionalNV

Reviews

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Frequently asked questions

Where can patients find DR. EARL S. NIELSEN (PH.D.)'s NPI?
You can confirm DR. EARL S. NIELSEN (PH.D.) with NPI 1043338593; it appears in the national provider directory.
Is DR. EARL S. NIELSEN (PH.D.) active in the national directory?
DR. EARL S. NIELSEN (PH.D.)'s public NPI profile is in an active state.
What does DR. EARL S. NIELSEN (PH.D.) treat or focus on?
Patients typically see DR. EARL S. NIELSEN (PH.D.) under the specialty Clinical Psychologist. Clinical services aligned with this taxonomy classification.
Where does public data place DR. EARL S. NIELSEN (PH.D.)?
The snapshot lists Reno, Nevada for DR. EARL S. NIELSEN (PH.D.); download NPPES for the complete set.
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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