Individual provider

Serign Mass Marong, M.D.

Family Medicine Physician Medicare enrolled

Serign Mass Marong, M.D. is a Family Medicine Physician in Tucson, AZ, registered under NPI 1386959989.

Getting there

The practice address on file is 6130 N LA CHOLLA BLVD, Tucson, AZ 85741. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

6130 N LA CHOLLA BLVD, Tucson, AZ 85741 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
54601 AZ Family Medicine Physician primary
ML60155828 WA Family Medicine Physician

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

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Family Practice
PAC ID
2466689732
Enrollment ID
I20171205003229

Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. 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: Arizona and Washington. The practice address on file is in Tucson, AZ, 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.

AZ Arizona practice address
Licence
54601
Specialty
Family Medicine Physician
Verify with the AZ board →
WA Washington
Licence
ML60155828
Specialty
Family Medicine Physician
Verify with the WA 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 Family Medicine covers

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
Allopathic & Osteopathic Physicians Family 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
207Q00000X Family Medicine Physician 54601 AZ primary
207Q00000X Family Medicine Physician ML60155828 WA

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.

NPI1386959989 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 9, 2010
Last updatedNov 6, 2023
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 6130 N LA CHOLLA BLVD
Tucson, AZ 85741
(520) 742-4159
Fax (520) 742-3493
Mailing address 5055 E BROADWAY BLVD STE A100
Tucson, AZ 85711
This record was updated on Nov 6, 2023, which is recent enough that the contact details are likely still accurate.

Number check

1386959989 passes the NPI check digit test The final digit 9 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 3 8 6 9 5 9 9 8
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 3 7 6 9 5 9 9 7

Sum = 81 · next multiple of 10 = 90 · check digit = 9 · actual last digit = 9

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 1386959989?
NPI 1386959989 is the National Provider Identifier assigned to Serign Mass Marong, M.D. in Tucson, AZ. 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 Family Medicine Physician cover?
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
How do I contact Serign Mass Marong, M.D.?
The phone number on file with NPPES is (520) 742-4159, last updated Nov 6, 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 Serign Mass Marong, M.D. 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 1386959989 a valid number?
Yes. 1386959989 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.