ROBERT DORIS
NPI 1528647096
Internal Medicine in Larkspur, CA

Q: What is Robert Doris's NPI number?

The NPI number for Robert Doris is 1528647096. It was assigned to this individual provider in the NPPES registry on April 3, 2021.

Q: What is Robert Doris's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Robert Doris was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since April 03, 2021PECOS Enrolled

1100 LARKSPUR LANDING CIR STE 10, LARKSPUR, CA 94939(415) 924-1214(415) 924-1375 Get Directions Write a Review

NPPES record last updated: July 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 11, 2025, Apr 3, 2021 (2 updates tracked since 2021).

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About Robert Doris NPPES

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

ROBERT DORIS (NPI 1528647096) is an individual internal medicine provider in Larkspur, California, licensed in California (A196909) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1528647096

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameROBERT DORIS

Location Address1100 LARKSPUR LANDING CIR STE 10Larkspur, CA 94939-1836

Mailing Address1100 Larkspur Landing Cir Ste 10Larkspur, CA 94939-1836 · (415) 924-1214 · Fax (415) 924-1375

Phone(415) 924-1214

Fax(415) 924-1375

Sole ProprietorYes

Medical School CMSOtherGraduated 2021

Enumeration DateApril 3, 2021

Last NPPES UpdateJuly 11, 20252 updates tracked since enumeration

NPPES CertifiedJuly 11, 2025

✔ NPI 1528647096 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A196909

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1100 LARKSPUR LANDING CIR STE 10, Larkspur, CA 94939

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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 (PECOS)

Robert Doris is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2860893344

PECOS Enrollment IDI20240816001175

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 Robert Doris reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Univ Of California Ucsf

13 mi

Internal Medicine

505 PARNASSUS AVE
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
339 clinicians in this Medicare group

NPI 1124439807 (415) 476-1000

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.

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.

138 services115 patients

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.

59 services59 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.

51 services44 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94939 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

$154.04 typical visit price

range $69.07 – $202.63

Typical copayment $38.51 (range $17.26 – $50.65)

Most-billed visit code 99204

Established Patient

$119.61 typical visit price

range $23.44 – $166.64

Typical copayment $29.90 (range $5.86 – $41.66)

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 12

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

INJIL ABUBAKAR MD

Family Medicine