DR. EDWARD LOTHAR FIEG (DO) – Emergency Medicine Physician, NPI 1609862523

DR. EDWARD LOTHAR FIEG (DO) is a healthcare provider. based in Fairfield, California. specializing in EMERGENCY MEDICINE. They hold the professional credentials DO. They hold a License No. 3073 (IA). The NPI Number for DR. EDWARD LOTHAR FIEG (DO) is 1609862523

Main info

Male
31 Years Of Experience
Accepts Medicare Assignment
Name
DR. EDWARD LOTHAR FIEG (DO)
NPI
1609862523
Phone
(707) 422-2953
Address
2896 CALLE DE CORDOBA
Enumeration Date
26 September 2005
Last Update Date
6 August 2009

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3146172000
Graduation Year
1995 (31 years ago)
PAC ID
0143480459
Group Practice PAC ID
0143608372
Professional Enrollment ID
I20150521000097
Address ID
MO631041016SA1201XBLVD400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience59
Completeness75
Years active:20State licenses:1Digital endpointsOther names

2,674 EMERGENCY MEDICINE in OH

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Provider Addresses for DR. EDWARD LOTHAR FIEG (DO)

  • 2896, Calle de Cordoba, Fairfield, Solano County, California, 94534, United States

    FAIRFIELD, CA 945347878

    Phone: (707) 422-2953

    Type: Mailing

  • Wright-Patterson Medical Center, 4881, Sugar Maple Drive, Buckeye Trailer Court, Greene County, Ohio, 45433, United States

    WRIGHT PATTERSON AFB, OH 454335546

    Phone: (937) 257-8838

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $27.

Total Amount is formed as General ($27) + Research ($0) + Ownership ($0) = $27.

Last reported payment date: 2023-03-20 • Largest payer in this snapshot: ABBVIE INC. ($27).

Total Amount

$27

General + Research + Ownership

Payments

2

Total payment records

General Amount

$27

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-03-20

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
ABBVIE INC.$27
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: 2015-05-21

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

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
I20120323000419IEmergency MedicineOHTBD
I20150521000097IEmergency MedicineMOTBD

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
99285Emergency department visit with high level of medical decision making3434$0
99284Emergency department visit with moderate level of medical decision making2828$0
View full utilization report →

Insurance plans in this area (ZIP 94534)

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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: 0143608372View full group profile
NameSpecialtyState
Anesthesiology AssistantMO
Pediatric Medicine, Hematology/OncologyTN
Nurse PractitionerIL
Certified Registered Nurse Anesthetist (Crna)MO
Pediatric MedicineIL
G A S T R O E N T E R O L O G YWV
Pediatric Medicine, Cardiovascular Disease (Cardiology)MO
Infectious DiseaseOH
Physician AssistantMO
Pediatric Medicine, Cardiovascular Disease (Cardiology)MO

Reviews

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Frequently asked questions

Is there an official ID for DR. EDWARD LOTHAR FIEG (DO) in U.S. healthcare records?
The official identifier for DR. EDWARD LOTHAR FIEG (DO) is NPI 1609862523.
Is there an active status for DR. EDWARD LOTHAR FIEG (DO)?
For scheduling context, DR. EDWARD LOTHAR FIEG (DO) is shown as active in the registry.
What clinical focus is listed for DR. EDWARD LOTHAR FIEG (DO)?
At a glance, DR. EDWARD LOTHAR FIEG (DO) is tied to Emergency Medicine Physician. Clinical services aligned with this taxonomy classification.
Where in California is DR. EDWARD LOTHAR FIEG (DO) registered?
Use Fairfield, California as the headline location for DR. EDWARD LOTHAR FIEG (DO) here.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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