DR. TIMOTHY JOHN III SULLIVAN (M.D.) – Allergy Physician, NPI 1023012911

DR. TIMOTHY JOHN III SULLIVAN (M.D.) is a healthcare provider. based in Ogden, Utah. specializing in ALLERGY/IMMUNOLOGY. They hold the professional credentials M.D.. They hold a License No. 037913 (GA). The NPI Number for DR. TIMOTHY JOHN III SULLIVAN (M.D.) is 1023012911

Main info

Male
Sole Proprietor
60 Years Of Experience
Accepts Medicare Assignment
Name
DR. TIMOTHY JOHN III SULLIVAN (M.D.)
NPI
1023012911
Phone
(801) 387-4850
Address
4403 HARRISON BLVD.
Enumeration Date
8 June 2005
Last Update Date
3 June 2015

Doctor Profile

Medical School Name
UNIVERSITY OF MIAMI, LM MILLER SCHOOL OF MEDICINE
Secondary Phone
8013874850
Graduation Year
1966 (60 years ago)
PAC ID
7214052802
Group Practice PAC ID
4486558566
Professional Enrollment ID
I20130320000742
Address ID
UT844033304OG4403XBLVD301
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience63
Completeness75
Years active:21State licenses:2Digital endpointsOther names

40 ALLERGY/IMMUNOLOGY in UT

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Provider Addresses for DR. TIMOTHY JOHN III SULLIVAN (M.D.)

  • Harrison Boulevard, Ogden, Weber County, Utah, 84403, United States

    STE 4640

    OGDEN, UT 844033304

    Phone: (801) 387-4850

    Fax: (801) 387-4855

    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)

CMS reports 90 Open Payments records for all available years, with a total value of $1,986.

Total Amount is formed as General ($1,986) + Research ($0) + Ownership ($0) = $1,986.

Last reported payment date: 2024-12-11 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($632).

Total Amount

$1,986

General + Research + Ownership

Payments

90

Total payment records

General Amount

$1,986

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-11

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

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: 2013-03-20

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
I20130320000742IAllergy/ImmunologyUTTBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
95004Test for allergy using allergenic extract2,28432$0
95165Professional service for preparation and provision of 1 or more antigens1,05621$0
95117Professional service for multiple injections of allergen59651$0
99214Established patient office or other outpatient visit, 30-39 minutes255148$0
94375Test to measure rate of airflow212122$0
View full utilization report →

Insurance plans in this area (ZIP 84403)

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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: 4486558566View full group profile
NameSpecialtyState
A L L E R G Y/ I M M U N O L O G YUT
A L L E R G Y/ I M M U N O L O G YUT

Reviews

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Frequently asked questions

Can I verify DR. TIMOTHY JOHN III SULLIVAN (M.D.) with an NPI only?
You can start verification with NPI 1023012911 for DR. TIMOTHY JOHN III SULLIVAN (M.D.), then check state licensing separately.
Is DR. TIMOTHY JOHN III SULLIVAN (M.D.) listed as active for patients and plans?
The listing shows DR. TIMOTHY JOHN III SULLIVAN (M.D.) as active in the NPI system.
What is DR. TIMOTHY JOHN III SULLIVAN (M.D.) best known for clinically?
Directory data describes DR. TIMOTHY JOHN III SULLIVAN (M.D.) with Allergy Physician. Clinical services aligned with this taxonomy classification.
Where should I expect DR. TIMOTHY JOHN III SULLIVAN (M.D.) on a map?
Expect Ogden, Utah as a primary anchor for DR. TIMOTHY JOHN III SULLIVAN (M.D.) unless the record lists multiple sites.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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