John Zipperer, MD
NPI 1649212770 · Internal Medicine Physician · Los Angeles, CA
John Zipperer, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1649212770).
Provider details
- NPI number
- 1649212770
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 6922 (AK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Oxycodone Hcl | 80 |
| Fentanyl | 50 |
| Gabapentin | 48 |
| Tizanidine Hcl | 40 |
| Nortriptyline Hcl | 33 |
| Methadone Hcl | 29 |
| Diazepam | 28 |
| Morphine Sulfate | 28 |
| Diclofenac Sodium | 21 |
| Morphine Sulfatebrand: Morphine Sulfate Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2023-04-17
- Certified
- 2023-04-17
Frequently asked questions
- What is John Zipperer's NPI number?
- John Zipperer's National Provider Identifier (NPI) is 1649212770, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Zipperer's specialty?
- John Zipperer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Zipperer located?
- John Zipperer's practice location on file with NPPES is 520 S Sepulveda Blvd Ste 402, Los Angeles, CA 90049-3537.
- What is John Zipperer's phone number?
- The practice phone number listed in the NPPES registry for John Zipperer is (424) 330-2838.
- Is John Zipperer's NPI active?
- Yes — John Zipperer's NPI (1649212770) is active in the NPPES registry as of the last update on 2023-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.