Hayden Lowenstein, M.D.
NPI 1437446648 · Infectious Disease Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hayden Lowenstein, M.D. is a Infectious Disease Physician provider in Los Angeles, CA (NPI 1437446648).
Provider details
- NPI number
- 1437446648
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,088 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 376 | $82 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 363 | $123 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 140 | $180 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 67 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $140 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 157 | 22 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 54 | — |
| Cephalexin | 36 | 14 |
| Dolutegravir Sodiumbrand: Tivicay | 32 | — |
| Dolutegravir/Rilpivirinebrand: Juluca | 27 | — |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 24 | — |
| Emtricitabine/Tenofov Alafenambrand: Descovy |
Practice location
Mailing address
Additional practice locations (1)
- 8700 Beverly BlvdWest Hollywood, CA 90048-1804Phone: (619) 543-6222
Registry dates
- Enumerated
- 2011-07-08
- Last updated
- 2019-05-20
Frequently asked questions
- What is Hayden Lowenstein's NPI number?
- Hayden Lowenstein's National Provider Identifier (NPI) is 1437446648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hayden Lowenstein's specialty?
- Hayden Lowenstein is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Hayden Lowenstein located?
- Hayden Lowenstein's practice location on file with NPPES is 8635 W 3rd St Ste 465w, Los Angeles, CA 90048-6111.
- What is Hayden Lowenstein's phone number?
- The practice phone number listed in the NPPES registry for Hayden Lowenstein is (310) 385-2300.
- Does Hayden Lowenstein accept Medicare?
- Hayden Lowenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hayden Lowenstein's NPI active?
- Yes — Hayden Lowenstein's NPI (1437446648) is active in the NPPES registry as of the last update on 2019-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.