Individual provider

Richard Lee, MD

Medical Oncology Physician Hospice and Palliative Medicine (Internal Medicine) Physician Medicare enrolled

Richard Lee, MD is a Hospice and Palliative Medicine (Internal Medicine) Physician in Irvine, CA, registered under NPI 1255503850. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 1000 FIVEPOINT, Irvine, CA 92618. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1000 FIVEPOINT, Irvine, CA 92618 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A80861 CA Medical Oncology Physician
A80861 CA Hospice and Palliative Medicine (Internal… primary

This provider holds licence A80861 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Medical Oncology
PAC ID
5991780397

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
California I20040621000916 Practitioner - Medical Oncology
Ohio I20151125000191 Practitioner - Hematology/oncology

Medicare enrolment is recorded as approved under the provider type Practitioner - Medical Oncology. There are 2 separate enrolment records across 2 states (CA, OH). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Hospice and Palliative Medicine covers

An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care. NUCC Health Care Provider Taxonomy, code 207RH0002X
Allopathic & Osteopathic Physicians Internal Medicine Hospice and Palliative Medicine

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207RX0202X Medical Oncology Physician Medical Oncology A80861 CA
207RH0002X Hospice and Palliative Medicine (Internal Medicine) Physician Hospice and Palliative Medicine A80861 CA primary

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1255503850 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 24, 2008
Last updatedApr 13, 2026
StatusActive
Sole proprietorNo
GenderMale
CredentialMD
Practice address 1000 FIVEPOINT
Irvine, CA 92618
(800) 826-4673
Mailing address PO BOX 512185
Los Angeles, CA 90051
Other identifiers 207424701 · Medicaid (TX)
This record was updated on Apr 13, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1255503850 passes the NPI check digit test The final digit 0 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 2 5 5 5 0 3 8 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 2 1 5 1 0 6 8 1

Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1255503850?
NPI 1255503850 is the National Provider Identifier assigned to Richard Lee, MD in Irvine, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Hospice and Palliative Medicine cover?
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and…
How do I contact Richard Lee, MD?
The phone number on file with NPPES is (800) 826-4673, last updated Apr 13, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Richard Lee, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1255503850 a valid number?
Yes. 1255503850 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.