Sung Knueppel, MD
NPI 1407967680 · Family Medicine Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sung Knueppel, MD is a Family Medicine Physician provider in Redwood City, CA (NPI 1407967680).
Provider details
- NPI number
- 1407967680
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A90498 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 70 | 27 |
| Levothyroxine Sodium | 49 | 17 |
| Lisinopril | 32 | 12 |
| Amlodipine Besylate | 26 | 11 |
| Losartan Potassium | 26 | — |
| Metformin Hclbrand: Metformin Hcl Er | 25 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2021-12-15
Frequently asked questions
- What is Sung Knueppel's NPI number?
- Sung Knueppel's National Provider Identifier (NPI) is 1407967680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sung Knueppel's specialty?
- Sung Knueppel is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sung Knueppel located?
- Sung Knueppel's practice location on file with NPPES is 805 Veterans Blvd, Redwood City, CA 94063-1734.
- What is Sung Knueppel's phone number?
- The practice phone number listed in the NPPES registry for Sung Knueppel is (650) 853-6600.
- Does Sung Knueppel accept Medicare?
- Sung Knueppel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sung Knueppel's NPI active?
- Yes — Sung Knueppel's NPI (1407967680) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.