Marianna Kong, M.D.
NPI 1871858399 · Family Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianna Kong, M.D. is a Family Medicine Physician provider in San Francisco, CA (NPI 1871858399).
Provider details
- NPI number
- 1871858399
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A127607 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
163 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $155 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 25 | $218 |
| Administration of Influenza Virus VaccineG0008 | 24 | $3 |
| Admn Sarscov2 Vacc 1 Dose90480 | 22 | $25 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 20 | $115 |
Typical Medicare-allowed amounts for these services range $3–$218 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 94 | 32 |
| Amlodipine Besylate | 64 | 21 |
| Losartan Potassium | 55 | 18 |
| Metoprolol Succinate | 52 | 14 |
| Metformin Hcl | 36 | 11 |
| Metformin Hclbrand: Metformin Hcl Er | 27 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-10
- Last updated
- 2023-08-02
- Certified
- 2023-08-02
Frequently asked questions
- What is Marianna Kong's NPI number?
- Marianna Kong's National Provider Identifier (NPI) is 1871858399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianna Kong's specialty?
- Marianna Kong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marianna Kong located?
- Marianna Kong's practice location on file with NPPES is 1525 Silver Ave, San Francisco, CA 94134-1229.
- What is Marianna Kong's phone number?
- The practice phone number listed in the NPPES registry for Marianna Kong is (415) 657-1751.
- Does Marianna Kong accept Medicare?
- Marianna Kong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianna Kong's NPI active?
- Yes — Marianna Kong's NPI (1871858399) is active in the NPPES registry as of the last update on 2023-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.