Individual provider

Lauren Mendelson, D.O.

Medical Oncology Physician Hematology & Oncology Physician Student in an Organized Health Care Education/Training Program Medicare enrolled

Lauren Mendelson, D.O. is a Medical Oncology Physician in Cincinnati, OH, registered under NPI 1841652815. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 3151 BELLEVUE AVE, Cincinnati, OH 45219. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3151 BELLEVUE AVE, Cincinnati, OH 45219 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
34.000000 OH Medical Oncology Physician primary
OT019898 PA Hematology & Oncology Physician

Licences are recorded in 2 states: OH, PA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Medical Oncology
PAC ID
3971898529

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Ohio I20230825001957 Practitioner - Medical Oncology
Massachusetts I20250617002973 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 (OH, MA). 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.

Licensed in 2 states

This provider holds licences in 2 states: Ohio and Pennsylvania. The practice address on file is in Cincinnati, OH, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

OH Ohio practice address
Licence
34.000000
Specialty
Medical Oncology Physician
Verify with the OH board →
PA Pennsylvania
Licence
OT019898
Specialty
Hematology & Oncology Physician
Verify with the PA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Medical Oncology covers

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer. NUCC Health Care Provider Taxonomy, code 207RX0202X
Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207RX0202X Medical Oncology Physician Medical Oncology 34.000000 OH primary
207RH0003X Hematology & Oncology Physician Hematology & Oncology OT019898 PA
390200000X Student in an Organized Health Care Education/Training Program

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.

NPI1841652815 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 28, 2016
Last updatedMay 8, 2023
StatusActive
Sole proprietorNo
CredentialD.O.
Practice address 3151 BELLEVUE AVE
Cincinnati, OH 45219
(513) 584-7848
Fax (513) 584-7281
Mailing address PO BOX 636256
Cincinnati, OH 45263
The last update on file is May 8, 2023. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1841652815 passes the NPI check digit test The final digit 5 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 8 4 1 6 5 2 8 1
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 8 1 3 5 4 8 2

Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5

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 1841652815?
NPI 1841652815 is the National Provider Identifier assigned to Lauren Mendelson, D.O. in Cincinnati, OH. 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 Medical Oncology cover?
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
How do I contact Lauren Mendelson, D.O.?
The phone number on file with NPPES is (513) 584-7848, last updated May 8, 2023. 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 Lauren Mendelson, D.O. 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 1841652815 a valid number?
Yes. 1841652815 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.