Serign Mass Marong, M.D.
NPI 1386959989 · Family Medicine Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Serign Mass Marong, M.D. is a Family Medicine Physician provider in Tucson, AZ (NPI 1386959989).
Provider details
- NPI number
- 1386959989
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ML60155828 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,176 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 601 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 456 | $127 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 348 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 342 | $16 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 332 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 322 | $6 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 103 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 438 | 133 |
| Levothyroxine Sodium | 348 | 102 |
| Rosuvastatin Calcium | 332 | 119 |
| Amlodipine Besylate | 285 | 92 |
| Lisinopril | 235 | 75 |
| Losartan Potassium | 230 | 73 |
| Pravastatin Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$121 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-08-09
- Last updated
- 2023-11-06
- Certified
- 2023-11-06
Frequently asked questions
- What is Serign Mass Marong's NPI number?
- Serign Mass Marong's National Provider Identifier (NPI) is 1386959989, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Serign Mass Marong's specialty?
- Serign Mass Marong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Serign Mass Marong located?
- Serign Mass Marong's practice location on file with NPPES is 6130 N La Cholla Blvd, Tucson, AZ 85741-3557.
- What is Serign Mass Marong's phone number?
- The practice phone number listed in the NPPES registry for Serign Mass Marong is (520) 742-4159.
- Does Serign Mass Marong accept Medicare?
- Serign Mass Marong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Serign Mass Marong's NPI active?
- Yes — Serign Mass Marong's NPI (1386959989) is active in the NPPES registry as of the last update on 2023-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.