Irene Sung, M.D.
NPI 1720514185 · Family Medicine Physician · Claremont, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irene Sung, M.D. is a Family Medicine Physician provider in Claremont, CA (NPI 1720514185).
Provider details
- NPI number
- 1720514185
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A166573 (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
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
190 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 53 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $137 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 21 | $7 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 19 | $119 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 18 | $3 |
| Urinalysis, Manual Test81002 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 15 | 15 |
| Cephalexin | 15 | 15 |
| Azithromycin | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 3110 Chino Ave Ste 150bChino Hills, CA 91709-1295Phone: (909) 630-7868Fax: (909) 469-2109
- 2333 Foothill Blvd Ste CLa Verne, CA 91750-3027Phone: (909) 392-6511Fax: (909) 469-2137
Registry dates
- Enumerated
- 2017-05-04
- Last updated
- 2022-07-15
- Certified
- 2022-07-15
Frequently asked questions
- What is Irene Sung's NPI number?
- Irene Sung's National Provider Identifier (NPI) is 1720514185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irene Sung's specialty?
- Irene Sung is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Irene Sung located?
- Irene Sung's practice location on file with NPPES is 1601 Monte Vista Ave Ste 190, Claremont, CA 91711-6600.
- What is Irene Sung's phone number?
- The practice phone number listed in the NPPES registry for Irene Sung is (909) 865-9977.
- Does Irene Sung accept Medicare?
- Irene Sung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irene Sung's NPI active?
- Yes — Irene Sung's NPI (1720514185) is active in the NPPES registry as of the last update on 2022-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.