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RICHARD R. UNGER MD
NPI 1942388079
Internal Medicine in Orinda, CA

Active since November 02, 2006PECOS Enrolled
12 CAMINO ENCINAS, ORINDA, CA 94563(510) 204-8166(510) 506-7724 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 7, 2023, Jun 17, 2021 (2 updates tracked since 2021).

About Richard R. Unger Md NPPES

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

RICHARD R. UNGER MD (NPI 1942388079) is an individual internal medicine provider in Orinda, California, licensed in California (G66059) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1942388079
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameRICHARD R. UNGERCredential: MD
Location Address12 CAMINO ENCINASOrinda, CA 94563-3304
Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (510) 204-8166 · Fax (510) 506-7724
Phone(510) 204-8166
Fax(510) 506-7724
Sole ProprietorNo
Enumeration DateNovember 2, 2006
Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration
NPPES CertifiedJune 17, 2021
✔ NPI 1942388079 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 · G66059
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.
12 CAMINO ENCINAS, Orinda, CA 94563
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11425 S Main StWalnut Creek, CA 94596-5318 · Phone (925) 295-4000
Location 2350 30th St Ste 100Oakland, CA 94609 · Phone (510) 204-8290 · Fax (510) 506-7725

Other Identifiers 2

Medicaid00G660590CA
OtherG66059CA · State Medical License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Richard R. Unger Md 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 Richard Unger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
Same address
Multi-Specialty
12 CAMINO ENCINAS
Orinda, CA 94563
  • Reassigned Medicare billing, California enrollment
  • 4,479 clinicians in this Medicare group
NPI 1366898538 (510) 204-8180

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 4

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 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.
73 services68 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.
33 services31 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
23 services23 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.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94563 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 20

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

OMEED ATEFI DO
Family Medicine
12 CAMINO ENCINAS
ORINDA, CA 94563
Contra Costa County (510) 204-8189
FREDERICK SEWOONG OH M.D.
Family Medicine
12 CAMINO ENCINAS
ORINDA, CA 94563
Contra Costa County (510) 204-8180
INGRID LINNEA LARSSON M.D.
Internal Medicine
12 CAMINO ENCINAS
ORINDA, CA 94563
Contra Costa County (510) 204-8166
JILL D FOLEY M.D.
Obstetrics & Gynecology
12 CAMINO ENCINAS, SUITE 15
ORINDA, CA 94563
Contra Costa County (925) 254-9000
ROGER M ILIFF M.D.
Family Medicine
12 CAMINO ENCINAS
ORINDA, CA 94563
Contra Costa County (510) 204-8180
CHRISTINE S TSANG N.P.
Nurse Practitioner
12 CAMINO ENCINAS
ORINDA, CA 94563
Contra Costa County (510) 204-8171
DR. JOHN WYATT CARRIGG MD
Otolaryngology
12 CAMINO ENCINAS, SUITE 14
ORINDA, CA 94563
Contra Costa County (925) 254-6710
WAI F. YEUNG, M.D., INC
Internal Medicine
12 CAMINO ENCINAS, SUITE 6
ORINDA, CA 94563
Contra Costa County (925) 254-5606

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 Richard Unger's NPI number?

The NPI number for Richard Unger is 1942388079. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Where is Richard Unger located?

Richard Unger practices at 12 Camino Encinas, Orinda, CA 94563. The listed phone number is (510) 204-8166.

What is Richard Unger's specialty?

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

Is Richard Unger enrolled in Medicare?

Yes. Richard Unger is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Richard Unger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Richard Unger reassigns Medicare benefits to Sutter Bay Medical Foundation (Orinda, 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 Richard Unger'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 Richard Unger was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.