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DR. SOWMYA OZA M.D.
NPI 1639394836
Internal Medicine in San Luis Obispo, CA

Active since April 16, 2007PECOS EnrolledAccepts Medicare Assignment
4460 BROAD ST STE 110, SAN LUIS OBISPO, CA 93401(805) 597-6715(805) 541-4973 Get Directions Write a Review

NPPES record last updated: September 18, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 18, 2024, Jun 28, 2024, Nov 30, 2022 and 2 more (5 updates tracked since 2016).

About Dr. Sowmya Oza M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SOWMYA OZA M.D. (NPI 1639394836) is an individual internal medicine provider in San Luis Obispo, California, licensed in California (139970) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and is a graduate of Northeastern Ohio University College Of Medicine (2006).

NPPES Registry Identity

NPI1639394836
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. SOWMYA OZACredential: M.D.
Location Address4460 BROAD ST STE 110San Luis Obispo, CA 93401
Mailing Address4460 Broad St Ste 110San Luis Obispo, CA 93401-8065
Phone(805) 597-6715
Fax(805) 541-4973
Sole ProprietorNo
Medical School CMSNortheastern Ohio University College Of MedicineGraduated 2006
Enumeration DateApril 16, 2007
Last NPPES UpdateSeptember 18, 20245 updates tracked since enumeration
NPPES CertifiedSeptember 18, 2024
✔ NPI 1639394836 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · 139970✔ Licensed in IL · 036-123642✔ Licensed in OH · 57.011517
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4460 BROAD ST STE 110, San Luis Obispo, CA 93401
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sowmya Oza M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6406909050
PECOS Enrollment IDI20160707002005
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Sowmya Oza reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pacific Central Coast Health Centers
Same address
Community Health
4460 BROAD ST STE 110
San Luis Obispo, CA 93401
  • Reassigned Medicare billing, California enrollment
  • 263 clinicians in this Medicare group
NPI 1588225353 (805) 597-6715
Bartz-Altadonna Community Health Center
148 mi
Federally Qualified Health Center (FQHC)
43322 GINGHAM AVE
Lancaster, CA 93535
  • Reassigned Medicare billing, California enrollment
  • 70 clinicians in this Medicare group
NPI 1811279763 (661) 874-4050
Rush University Medical Center
1,818 mi
Internal Medicine
2011 YORK ROAD, 2ND FLOOR
Oak Brook, IL 60523
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Rush University Medical Group
  • 2,169 clinicians in this Medicare group
NPI 1801375696 (630) 724-1310

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
80 services80 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
74 services72 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
66 services64 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
49 services48 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
29 services29 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
28 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$135.73 typical visit price
range $59.84 – $178.89
Typical copayment $33.93 (range $14.96 – $44.72)
Most-billed visit code 99204
Established Patient
$104.82 typical visit price
range $19.70 – $146.55
Typical copayment $26.20 (range $4.92 – $36.63)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 15

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers18 claims56 services$6.66 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
3 suppliers25 claims25 services$37.76 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
5 suppliers27 claims27 services$93.33 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
5 suppliers27 claims73 services$35.31 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
3 suppliers12 claims61 services$14.63 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
3 suppliers17 claims17 services$55.31 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GLADYS DESCARGAR FIELD MSN, APRN, ACNP-BC
Nurse Practitioner
4460 BROAD ST STE 110
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 597-6715
PACIFIC CENTRAL COAST HEALTH CENTERS
Clinic/Center (Community Health)
4460 BROAD ST STE 110
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 597-6715
JOURDAN MACKENZIE MURO PA-C
Physician Assistant
4460 BROAD ST STE 110
SAN LUIS OBISPO, CA 93401
San Luis Obispo County (805) 597-6715

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sowmya Oza's NPI number?

The NPI number for Sowmya Oza is 1639394836. It was assigned to this individual provider in the NPPES registry on April 16, 2007.

Where is Sowmya Oza located?

Sowmya Oza practices at 4460 Broad St Ste 110, San Luis Obispo, CA 93401. The listed phone number is (805) 597-6715.

What is Sowmya Oza's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Sowmya Oza enrolled in Medicare?

Yes. Sowmya Oza is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Sowmya Oza's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sowmya Oza reassigns Medicare benefits to 3 organizations: Pacific Central Coast Health Centers (San Luis Obispo, CA), Bartz-Altadonna Community Health Center (Lancaster, CA) and Rush University Medical Center (Oak Brook, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sowmya Oza's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sowmya Oza was last updated on September 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.