Nabeel Najmuddin, M.D.
NPI 1619325321 · Hospitalist Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nabeel Najmuddin, M.D. is a Hospitalist Physician provider in Los Angeles, CA (NPI 1619325321).
Provider details
- NPI number
- 1619325321
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A158398 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 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
1,305 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 50 Minutes99233 | 753 | $121 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 238 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 139 | $176 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 90 | $80 |
| Advance Care Planning, First 30 Minutes99497 | 85 | $77 |
Typical Medicare-allowed amounts for these services range $77–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-03
- Last updated
- 2020-02-04
- Certified
- 2020-02-04
Frequently asked questions
- What is Nabeel Najmuddin's NPI number?
- Nabeel Najmuddin's National Provider Identifier (NPI) is 1619325321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nabeel Najmuddin's specialty?
- Nabeel Najmuddin is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Nabeel Najmuddin located?
- Nabeel Najmuddin's practice location on file with NPPES is 1520 San Pablo St Ste 1000, Los Angeles, CA 90033-5312.
- What is Nabeel Najmuddin's phone number?
- The practice phone number listed in the NPPES registry for Nabeel Najmuddin is (323) 442-5100.
- Does Nabeel Najmuddin accept Medicare?
- Nabeel Najmuddin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nabeel Najmuddin's NPI active?
- Yes — Nabeel Najmuddin's NPI (1619325321) is active in the NPPES registry as of the last update on 2020-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.