What is Nirmal Kumar's NPI number?

Nirmal Kumar's National Provider Identifier (NPI) is 1578652111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nirmal Kumar's specialty?

Nirmal Kumar is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).

Where is Nirmal Kumar located?

Nirmal Kumar's practice location on file with NPPES is 1350 N. Altadena Dr., Pasadena, CA 91107-1488.

What is Nirmal Kumar's phone number?

The practice phone number listed in the NPPES registry for Nirmal Kumar is (626) 798-8400.

Does Nirmal Kumar accept Medicare?

Nirmal Kumar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Nirmal Kumar's NPI active?

Yes — Nirmal Kumar's NPI (1578652111) is active in the NPPES registry as of the last update on 2026-03-12.

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Nirmal Kumar, M.D.

NPI 1578652111 · Nephrology Physician · Pasadena, CA

Nirmal Kumar, M.D. is a Nephrology Physician provider in Pasadena, CA (NPI 1578652111).

Provider details

NPI number: 1578652111
Entity type: Individual
Primary specialty: Nephrology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: A29459 (CA)

Practice location

1350 N. Altadena Dr.

Suite 100

Pasadena, CA 91107-1488

Phone: (626) 798-8400

Fax: (626) 798-7617

Street-level locationGet directions

More CA providers

Mailing address

1350 N. Altadena Dr.

Pasadena, CA 91107-1488

Specialties & taxonomies

Nephrology PhysicianPrimary207RN0300XLicense A29459 (CA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(68/100 index)

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
299 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)
Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960	155	$369
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	144	$81

Typical Medicare-allowed amounts for these services range $81–$369 (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 · 8 distinct drugs on file.

Drug	Part D claims (2024)
Sevelamer Carbonate	34
Carvedilol	26
Amlodipine Besylate	22
Furosemide	18
Irbesartan	18
Ferric Citratebrand: Auryxia	17
Calcium Acetate	14
Prednisone	11

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2006-10-12
Last updated: 2026-03-12
Certified: 2026-03-12

Frequently asked questions

What is Nirmal Kumar's NPI number?: Nirmal Kumar's National Provider Identifier (NPI) is 1578652111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Nirmal Kumar's specialty?: Nirmal Kumar is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
Where is Nirmal Kumar located?: Nirmal Kumar's practice location on file with NPPES is 1350 N. Altadena Dr., Pasadena, CA 91107-1488.
What is Nirmal Kumar's phone number?: The practice phone number listed in the NPPES registry for Nirmal Kumar is (626) 798-8400.
Does Nirmal Kumar accept Medicare?: Nirmal Kumar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Nirmal Kumar's NPI active?: Yes — Nirmal Kumar's NPI (1578652111) is active in the NPPES registry as of the last update on 2026-03-12.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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)
Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960	155	$369
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	144	$81

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.

Drug	Part D claims (2024)
Sevelamer Carbonate	34
Carvedilol	26
Amlodipine Besylate	22
Furosemide	18
Irbesartan	18
Ferric Citratebrand: Auryxia	17
Calcium Acetate	14
Prednisone	11

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)