Kathy Chang-Lipsenthal, MD
NPI 1356340079 · Internal Medicine Physician · Mill Valley, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathy Chang-Lipsenthal, MD is a Internal Medicine Physician provider in Mill Valley, CA (NPI 1356340079).
Provider details
- NPI number
- 1356340079
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G080023 (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
20 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
802 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 | 351 | $153 |
| 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 | 138 | $19 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 100 | $108 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 96 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 58 | $156 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 94 | 44 |
| Levothyroxine Sodium | 63 | 25 |
| Amlodipine Besylate | 34 | 15 |
| Losartan Potassium | 31 | 13 |
| Omeprazole | 26 | 13 |
| Gabapentin | 25 | 18 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-14
- Last updated
- 2025-09-30
- Certified
- 2025-09-30
Frequently asked questions
- What is Kathy Chang-Lipsenthal's NPI number?
- Kathy Chang-Lipsenthal's National Provider Identifier (NPI) is 1356340079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathy Chang-Lipsenthal's specialty?
- Kathy Chang-Lipsenthal is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kathy Chang-Lipsenthal located?
- Kathy Chang-Lipsenthal's practice location on file with NPPES is 750 Redwood Hwy Frontage Rd Ste 1210, Mill Valley, CA 94941-2483.
- What is Kathy Chang-Lipsenthal's phone number?
- The practice phone number listed in the NPPES registry for Kathy Chang-Lipsenthal is (888) 663-6331.
- Does Kathy Chang-Lipsenthal accept Medicare?
- Kathy Chang-Lipsenthal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathy Chang-Lipsenthal's NPI active?
- Yes — Kathy Chang-Lipsenthal's NPI (1356340079) is active in the NPPES registry as of the last update on 2025-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.