DR. HENRY ARTHUR OSTER M.D.
NPI 1417992223
Internal Medicine - Infectious Disease in Ventura, CA

NPI Status: Active since June 17, 2006

Contact Information

2721 E MAIN ST
VENTURA, CA
ZIP 93003
Phone: (805) 656-6272
Fax: (805) 656-3863

Get Directions Reviews

  • Individual
  • Male
  • Internal Medicine
  • Infectious Disease
  • PECOS Enrolled

About HENRY OSTER

This page provides the complete NPI Profile along with additional information for Henry Oster, an internist established in Ventura, California with a medical specialization in Internal Medicine, focusing in infectious disease . The healthcare provider is registered in the NPI registry with number 1417992223 assigned on June 2006. The practitioner's primary taxonomy code is 207RI0200X with license number G33690 (CA). The provider is registered as an individual and his NPI record was last updated 8 years ago.

NPI
1417992223
Provider Name
DR. HENRY ARTHUR OSTER M.D.
Gender
Male
Entity Type
Individual
Location Address
2721 E MAIN ST VENTURA, CA 93003
Location Phone
(805) 656-6272
Location Fax
(805) 656-3863
Mailing Address
PO BOX 3674 VENTURA, CA 93006
Mailing Phone
(805) 656-6272
Mailing Fax
(805) 656-3863
Is Sole Proprietor?
Yes
Enumeration Date
06-17-2006
Last Update Date
05-01-2017
Code Navigator

An internist like Henry Oster is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Infectious Disease

Taxonomy Code
207RI0200X
Type
Allopathic & Osteopathic Physicians
License No.
G33690
License State
CA
Taxonomy Description
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
00G336900MEDICAID (05)CA 
A45642MEDICARE UPIN (02) 

Medicare Participation & PECOS Enrollment Status

Henry Oster is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Follow-up hospital inpatient care per day, typically 25 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 146 times for 76 patients

Follow-up hospital inpatient care per day, typically 35 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 510 times for 133 patients

Initial hospital inpatient care per day, typically 70 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 121 times for 108 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

This service was performed 52 times for 27 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 93003 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $140.72
  • Minimum New Patient Price $62.32
  • Maximum New Patient Price $185.36
  • Average New Patient Copayment $35.18
  • Minimum New Patient Copayment $15.58
  • Maximum New Patient Copayment $46.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $108.74
  • Minimum Established Patient Price $20.68
  • Maximum Established Patient Price $151.85
  • Average Established Patient Copayment $27.18
  • Minimum Established Patient Copayment $5.17
  • Maximum Established Patient Copayment $37.96

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for DR. HENRY ARTHUR OSTER M.D.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1417992223
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2427189424
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 4 + 2 + 7 + 1 + 8 + 9 + 4 + 2 + 4 + 24 = 67
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 67 = 33

The NPI number 1417992223 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 11 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1427434570DR. BRIAN MARK UTZ D.O.
Individual
Family Medicine2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1396121190DR. SIMON AKL D.O.
Individual
Family Medicine2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1649512864DR. KAYVAHN PIERCE STECK-BAYAT MD
Individual
Obstetrics & Gynecology2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1700371523DR. ALLAN KOSUKE WAGNER DO
Individual
Family Medicine2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1003873035DR. MICHELLE L DAUCETT D.O.
Individual
Family Medicine2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1184342081VILLAGE COLLABORATION STATION, PC
Organization
Clinic/Center (Adolescent and Children Mental Health)2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1669758918 DENA WERNER M.D.
Individual
Internal Medicine2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1699402669 BRIAN KNOLL
Individual
Psychologist (Clinical)2721 E MAIN ST
VENTURA, CA 93003
(805) 948-5011
1669194015 MIGUEL COBIAN PHARM. D
Individual
Pharmacist2721 E MAIN ST
VENTURA, CA 93003
(805) 948-8072
1134798267 EMMA HAFTEVANI SOGOMONIAN
Individual
Family Medicine2721 E MAIN ST
VENTURA, CA 93003
(805) 667-2841
1083001010COMMUNITY MEMORIAL HEALTH SYSTEM
Organization
Clinic/Center (Multi-Specialty)2721 E MAIN ST
VENTURA, CA 93003
(805) 948-2841

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417992223, enumerated in the NPI registry as an "individual" on June 17, 2006

The provider is located at 2721 E Main St Ventura, Ca 93003 and the phone number is (805) 656-6272

The provider's speciality is Internal Medicine with taxonomy code 207RI0200X with a focus in Infectious Disease

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $140.72 with an average copayment of $35.18 for new patient appointments. Established patients should expect a typical charge of $108.74 and an average copayment of 27.18. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Initial hospital inpatient care per day, typically 70 minutes and Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and.

This NPI record was last updated on June 17, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.