Jane Chien, MD
NPI 1588620785 · Internal Medicine Physician · Los Gatos, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jane Chien, MD is a Internal Medicine Physician provider in Los Gatos, CA (NPI 1588620785).
Provider details
- NPI number
- 1588620785
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A55106 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
3,173 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,198 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 932 | $157 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 374 | $112 |
| Online Digital Evaluation and Management Service for an Established Patient for Up to 7 Days, Total Time 5-10 Minutes99421 | 353 | $18 |
| Administration of Influenza Virus VaccineG0008 | 106 | $39 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 86 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 690 | 210 |
| Levothyroxine Sodium | 423 | 116 |
| Amlodipine Besylate | 358 | 108 |
| Lisinopril | 309 | 80 |
| Atenolol | 284 | 74 |
| Losartan Potassium | 263 | 83 |
| Hydrochlorothiazide | 202 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$219 across 11 records (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
- 2006-04-25
- Last updated
- 2025-04-13
- Certified
- 2025-04-13
Frequently asked questions
- What is Jane Chien's NPI number?
- Jane Chien's National Provider Identifier (NPI) is 1588620785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jane Chien's specialty?
- Jane Chien is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jane Chien located?
- Jane Chien's practice location on file with NPPES is 14981 National Ave Ste 6, Los Gatos, CA 95032-2600.
- What is Jane Chien's phone number?
- The practice phone number listed in the NPPES registry for Jane Chien is (408) 358-1811.
- Does Jane Chien accept Medicare?
- Jane Chien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jane Chien's NPI active?
- Yes — Jane Chien's NPI (1588620785) is active in the NPPES registry as of the last update on 2025-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.