DR. STEPHAN R TARGAN (M.D.) – Internal Medicine Physician, NPI 1619906963

DR. STEPHAN R TARGAN (M.D.) is a healthcare provider. based in Los angeles, California. specializing in GASTROENTEROLOGY, INFECTIOUS DISEASE, INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. G22752 (CA). The NPI Number for DR. STEPHAN R TARGAN (M.D.) is 1619906963

Main info

Male
55 Years Of Experience
Accepts Medicare Assignment
Name
DR. STEPHAN R TARGAN (M.D.)
NPI
1619906963
Phone
(310) 423-4100
Address
PO BOX 512717
Enumeration Date
30 June 2006
Last Update Date
20 August 2014

Doctor Profile

Medical School Name
JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
3104235000
Graduation Year
1971 (55 years ago)
PAC ID
9638362197
Group Practice PAC ID
0446169114
Professional Enrollment ID
I20101018000549
Address ID
CA900481804WE8700XBLVD300
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness75
Years active:19State licenses:1Digital endpointsOther names

1,981 GASTROENTEROLOGY in CA

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Provider Addresses for DR. STEPHAN R TARGAN (M.D.)

  • Box, Lago del Salado, Los Angeles, San Nicolás de los Garza, Nuevo León, 66477, Mexico

    LOS ANGELES, CA 900510717

    Phone: (310) 423-4100

    Fax: (310) 423-0146

    Type: Mailing

  • Cedars-Sinai Medical Center, 8700, Beverly Boulevard, West Hollywood, Los Angeles County, California, 90048, United States

    WEST HOLLYWOOD, CA 900481804

    Phone: (310) 423-4100

    Fax: (310) 423-0146

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 3 Open Payments records for all available years, with a total value of $30,338.

Total Amount is formed as General ($30,338) + Research ($0) + Ownership ($0) = $30,338.

Last reported payment date: 2024-09-23 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($30,338).

Total Amount

$30,338

General + Research + Ownership

Payments

3

Total payment records

General Amount

$30,338

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-09-23

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Merck Sharp & Dohme LLC$30,338
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: 2010-10-18

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
I20101018000549IGastroenterologyCATBD

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
99213Established patient office or other outpatient visit, 20-29 minutes2514$0
99205New patient office or other outpatient visit, 60-74 minutes1616$0
View full utilization report →

Insurance plans in this area (ZIP 90051)

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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: 0446169114View full group profile
NameSpecialtyState
Critical Care (Intensivists), General SurgeryCA
-WA
Nurse PractitionerCA
Physician AssistantCA
Clinical PsychologistCA
Nurse PractitionerCA
N E U R O S U R G E R YOH
Nurse PractitionerCA
General Surgery, Critical Care (Intensivists)CA
Internal MedicineCA

Reviews

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Frequently asked questions

How is DR. STEPHAN R TARGAN (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. STEPHAN R TARGAN (M.D.) with NPI 1619906963.
Is DR. STEPHAN R TARGAN (M.D.) listed as active for patients and plans?
The listing shows DR. STEPHAN R TARGAN (M.D.) as active in the NPI system.
What is DR. STEPHAN R TARGAN (M.D.) best known for clinically?
Directory data describes DR. STEPHAN R TARGAN (M.D.) with Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Where is DR. STEPHAN R TARGAN (M.D.) based?
DR. STEPHAN R TARGAN (M.D.) is tied to Los Angeles, California in the data we show; additional addresses may exist on the full record.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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