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DR. ARIANNA MARIA KATHARINA HEYER MD, MPH
NPI 1891371241
Internal Medicine in San Diego, CA

Active since March 23, 2021PECOS Enrolled
10455 SORRENTO VALLEY RD, SAN DIEGO, CA 92121(585) 552-7475 Get Directions Write a Review

NPPES record last updated: June 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 11, 2025, Mar 23, 2021 (2 updates tracked since 2021).

About Dr. Arianna Maria Katharina Heyer Md, Mph NPPES

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

DR. ARIANNA MARIA KATHARINA HEYER MD, MPH (NPI 1891371241) is an individual internal medicine provider in San Diego, California, licensed in California (A200882) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891371241
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ARIANNA MARIA KATHARINA HEYERCredential: MD, MPH
Location Address10455 SORRENTO VALLEY RDSan Diego, CA 92121-1620
Mailing Address10455 Sorrento Valley RdSan Diego, CA 92121-1620 · (585) 527-4758
Phone(585) 552-7475
Sole ProprietorNo
Enumeration DateMarch 23, 2021
Last NPPES UpdateJune 11, 20252 updates tracked since enumeration
NPPES CertifiedJune 11, 2025
✔ NPI 1891371241 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A200882
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.
10455 SORRENTO VALLEY RD, San Diego, CA 92121
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Arianna Maria Katharina Heyer Md, Mph 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92121 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
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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.

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.

ANNELA L FLORES MT-BC
Music Therapist
10455 SORRENTO VALLEY RD
SAN DIEGO, CA 92121
San Diego County (858) 475-2201
MS. KAREN LEE KUPFERMAN FNP
Nurse Practitioner (Family)
10455 SORRENTO VALLEY RD
SAN DIEGO, CA 92121
San Diego County (858) 552-7475
ELEN YIP ZEPEDA DNP
Nurse Practitioner
10455 SORRENTO VALLEY RD
SAN DIEGO, CA 92121
San Diego County (858) 552-8585

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 Arianna Heyer's NPI number?

The NPI number for Arianna Heyer is 1891371241. It was assigned to this individual provider in the NPPES registry on March 23, 2021.

Where is Arianna Heyer located?

Arianna Heyer practices at 10455 Sorrento Valley Rd, San Diego, CA 92121. The listed phone number is (585) 552-7475.

What is Arianna Heyer's specialty?

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

Is Arianna Heyer enrolled in Medicare?

Yes. Arianna Heyer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Arianna Heyer was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.