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DR. SUDHA REGHUNATHAN M.D.
NPI 1568518827
Internal Medicine in Camarillo, CA

Active since January 26, 2007PECOS Enrolled
3687 LAS POSAS RD, SUITE- H-187, CAMARILLO, CA 93010(805) 445-4189(805) 445-9219 Get Directions Write a Review

NPPES record last updated: April 23, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Sudha Reghunathan M.d. NPPES

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

DR. SUDHA REGHUNATHAN M.D. (NPI 1568518827) is an individual internal medicine provider in Camarillo, California, licensed in California (A053595) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1568518827
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. SUDHA REGHUNATHANCredential: M.D.
Location Address3687 LAS POSAS RD, SUITE- H-187Camarillo, CA 93010-1482
Mailing Address3687 Las Posas Rd, Suite- H-187Camarillo, CA 93010-1482 · (805) 445-4189 · Fax (805) 445-9219
Phone(805) 445-4189
Fax(805) 445-9219
Sole ProprietorNo
Enumeration DateJanuary 26, 2007
Last NPPES UpdateApril 23, 2019
✔ NPI 1568518827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · A053595✔ Licensed in CA · A53595
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.
Also ListedPediatricsTaxonomy 208000000X · License A053595 (CA)
3687 LAS POSAS RD, Camarillo, CA 93010
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Other Names 1

Professional Name (2)Dr. Sudha Reghu Nathan M.d.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sudha Reghunathan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Sudha Reghunathan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Inpatient Specialists Of California, PC
100 mi
Internal Medicine
2101 N WATERMAN AVE
San Bernardino, CA 92404
  • Reassigned Medicare billing, California enrollment
  • 1,216 clinicians in this Medicare group
NPI 1952792475 (615) 377-5658

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93010 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%267 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 7

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

DR. MARK STEVEN LISAGOR D.D.S.
Dentist (Pediatric Dentistry)
3687 LAS POSAS RD, #180
CAMARILLO, CA 93010
Ventura County (805) 484-2705
CAMARILLO CHILDRENS DENTAL GROUP
Dentist (Pediatric Dentistry)
3687 LAS POSAS RD
CAMARILLO, CA 93010
Ventura County (805) 484-2705
VINCENT COLE SMITH
Dentist (Orthodontics and Dentofacial Orthopedics)
3687 LAS POSAS RD, DOS CAMINOS PLAZA
CAMARILLO, CA 93010
Ventura County (805) 484-2705
JOSEPH LAWRENCE LENNON DC
Chiropractor
3687 LAS POSAS RD, STE 185
CAMARILLO, CA 93010
Ventura County (805) 484-1990
LYNN WAN DDS
Dentist (Pediatric Dentistry)
3687 LAS POSAS RD
CAMARILLO, CA 93010
Ventura County (805) 484-2705
INTERNAL MEDICINE & PEDIATRICS PRIVATE PRACTICE, A MEDICAL CORPORATION
Internal Medicine
3687 LAS POSAS RD, SUITE H-187
CAMARILLO, CA 93010
Ventura County (805) 445-4189
MADEEHA SIDDIQUI DDS
Dentist (Pediatric Dentistry)
3687 LAS POSAS RD
CAMARILLO, CA 93010
Ventura County (805) 738-9500

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 Sudha Reghunathan's NPI number?

The NPI number for Sudha Reghunathan is 1568518827. It was assigned to this individual provider in the NPPES registry on January 26, 2007. The provider is also known as Dr. Sudha Reghu Nathan M.D..

Where is Sudha Reghunathan located?

Sudha Reghunathan practices at 3687 Las Posas Rd Suite- H-187, Camarillo, CA 93010. The listed phone number is (805) 445-4189.

What is Sudha Reghunathan's specialty?

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

Is Sudha Reghunathan enrolled in Medicare?

Yes. Sudha Reghunathan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sudha Reghunathan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sudha Reghunathan reassigns Medicare benefits to Inpatient Specialists Of California, PC (San Bernardino, CA). The 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 Sudha Reghunathan'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 Sudha Reghunathan was last updated on April 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.