Anum Hamiduzzaman, M.D.
NPI 1649681495 · Nephrology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anum Hamiduzzaman, M.D. is a Nephrology Physician provider in Orange, CA (NPI 1649681495).
Provider details
- NPI number
- 1649681495
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A149418 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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 tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
296 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 125 | $150 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 86 | $101 |
| 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 | 85 | $17 |
Typical Medicare-allowed amounts for these services range $17–$150 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 44 | 28 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 33 | 22 |
| Pantoprazole Sodium | 23 | 15 |
| Carvedilol | 20 | 12 |
| Atovaquone | 14 | — |
| Cinacalcet Hcl | 14 | — |
| Nifedipinebrand: Nifedipine Er | 12 | — |
Practice location
Mailing address
Additional practice locations (2)
- 200 Ucla Medical Plz Ste 565cLos Angeles, CA 90095-1029Phone: (310) 267-2555
- 1200 N State StLos Angeles, CA 90033-1029Phone: (323) 226-7556Fax: (323) 226-2657
Registry dates
- Enumerated
- 2014-05-14
- Last updated
- 2025-11-21
- Certified
- 2025-11-21
Frequently asked questions
- What is Anum Hamiduzzaman's NPI number?
- Anum Hamiduzzaman's National Provider Identifier (NPI) is 1649681495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anum Hamiduzzaman's specialty?
- Anum Hamiduzzaman is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Anum Hamiduzzaman located?
- Anum Hamiduzzaman's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Anum Hamiduzzaman's phone number?
- The practice phone number listed in the NPPES registry for Anum Hamiduzzaman is (714) 456-8888.
- Does Anum Hamiduzzaman accept Medicare?
- Anum Hamiduzzaman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anum Hamiduzzaman's NPI active?
- Yes — Anum Hamiduzzaman's NPI (1649681495) is active in the NPPES registry as of the last update on 2025-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.