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DR. RONALD HANSEL MAIN M.D.
NPI 1063520526
Internal Medicine - Cardiovascular Disease in Carlsbad, CA

Active since August 26, 2006PECOS EnrolledAccepts Medicare Assignment
2604B EL CAMINO REAL STE 275, CARLSBAD, CA 92008(442) 888-4176 Get Directions Write a Review

NPPES record last updated: August 27, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Ronald Hansel Main M.d. NPPES

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

DR. RONALD HANSEL MAIN M.D. (NPI 1063520526) is an individual cardiovascular disease provider in Carlsbad, California, licensed in California (G40882) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Union Hospital, and is a graduate of Other (1978).

NPPES Registry Identity

NPI1063520526
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. RONALD HANSEL MAINCredential: M.D.
Location Address2604B EL CAMINO REAL STE 275Carlsbad, CA 92008-1214
Mailing Address2604b El Camino Real Ste 275Carlsbad, CA 92008-1214 · (442) 888-4176
Phone(442) 888-4176
Sole ProprietorNo
Medical School CMSOtherGraduated 1978
Enumeration DateAugust 26, 2006
Last NPPES UpdateAugust 27, 2024
NPPES CertifiedAugust 27, 2024
✔ NPI 1063520526 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Licenses✔ Licensed in CA · G40882✔ Licensed in IN · 01094694A
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
2604B EL CAMINO REAL STE 275, Carlsbad, CA 92008
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource, Oscar Insurance Corporation of Ohio and more.Insurance ›

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. Ronald Hansel Main 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 ID6103871645
PECOS Enrollment IDI20210112002137, I20260610002759
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

4

Medicare enrollment records show Ronald Main reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Santa Clara
357 mi
Federally Qualified Health Center (FQHC)
7475 CAMINO ARROYO
Gilroy, CA 95020
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1629301346 (California), NPI 1588721500 (California)
  • 2,460 clinicians in this Medicare group
NPI 1922093533 (408) 885-5000
Billings Cinic
859 mi
Family Medicine
236 YELLOWSTONE AVE
West Yellowstone, MT 59758
  • Reassigned Medicare billing, Montana enrollment
  • Medicare enrollment name: Billings Clinic
  • 1,264 clinicians in this Medicare group
NPI 1710600119 (406) 238-2500
Union Physician Services, LLC
2,036 mi
Family Medicine
659 BOULEVARD ST
Dover, OH 44622
  • Reassigned Medicare billing, Ohio enrollment
  • 126 clinicians in this Medicare group
NPI 1215169826 (330) 364-0805
Maui Health System A Kaiser Foundation Hospitals LLC
2,540 mi
Nursing Facility/Intermediate Care Facility
100 KEOKEA PL
Kula, HI 96790
  • Reassigned Medicare billing, Hawaii enrollment
  • 138 clinicians in this Medicare group
NPI 1184079956 (808) 878-1221

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 3

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
34 services23 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
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.
28 services18 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
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.
13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Union Hospital

Acute Care Hospitals · Dover, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number360010
Location659 BoulevardDover, OH 44622 · Tuscarawas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92008 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Ronald Main's NPI number?

The NPI number for Ronald Main is 1063520526. It was assigned to this individual provider in the NPPES registry on August 26, 2006.

Where is Ronald Main located?

Ronald Main practices at 2604B El Camino Real Ste 275, Carlsbad, CA 92008. The listed phone number is (442) 888-4176.

What is Ronald Main's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Ronald Main enrolled in Medicare?

Yes. Ronald Main 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 Ronald Main's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Main reassigns Medicare benefits to 4 organizations: County Of Santa Clara (Gilroy, CA), Billings Cinic (West Yellowstone, MT), Union Physician Services, LLC (Dover, OH) and Maui Health System A Kaiser Foundation Hospitals LLC (Kula, HI). 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 Ronald Main's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronald Main accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource, Oscar Insurance Corporation of Ohio and Providence Health Plan list Ronald Main as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ronald Main affiliated with any hospitals?

According to CMS data, Ronald Main is affiliated with Union Hospital.

When was this NPI record last updated?

The NPPES record for Ronald Main was last updated on August 27, 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.