1. Home
  2. Directory
  3. California
  4. Pomona
  5. Internal Medicine
  6. NPI Profile

NADIR ALI ELTAHIR MD
NPI 1053389338
Internal Medicine - Pulmonary Disease in Pomona, CA

Active since March 10, 2006PECOS EnrolledAccepts Medicare Assignment
1940 N ORANGE GROVE AVE, POMONA, CA 91767(909) 865-6900(909) 865-6300 Get Directions Write a Review

NPPES record last updated: September 13, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nadir Ali Eltahir Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NADIR ALI ELTAHIR MD (NPI 1053389338) is an individual pulmonary disease provider in Pomona, California, licensed in California (A61585) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1983).

NPPES Registry Identity

NPI1053389338
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameNADIR ALI ELTAHIRCredential: MD
Location Address1940 N ORANGE GROVE AVEPomona, CA 91767-3002
Mailing Address840 Towne Center Dr, Chaparral Medical Group, Inc.Pomona, CA 91767-5900 · (909) 398-1550 · Fax (909) 398-1488
Phone(909) 865-6900
Fax(909) 865-6300
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateMarch 10, 2006
Last NPPES UpdateSeptember 13, 2018
✔ NPI 1053389338 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CA · A61585
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A61585 (CA)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License A61585 (CA)
Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License A61585 (CA)
1940 N ORANGE GROVE AVE, Pomona, CA 91767
Open in Google Maps ↗

Other Identifiers 1

Medicaid00A615850CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nadir Ali Eltahir Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830236660
PECOS Enrollment IDI20091027000358
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Nadir Eltahir reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Chaparral Medical Group, Inc.
Same address
Pulmonary Disease
1940 N ORANGE GROVE AVE STE A&B
Pomona, CA 91767
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1750634325 (California)
  • 114 clinicians in this Medicare group
NPI 1609292051 (909) 865-6900
Quantum Healthcare Medical Associates Inc.
23 mi
Hospitalist
400 N PEPPER AVE
Colton, CA 92324
  • Reassigned Medicare billing, California enrollment
  • 338 clinicians in this Medicare group
NPI 1568490597 (909) 580-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
424 services141 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
176 services74 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
91 services70 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
50 services32 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
50 services21 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
29 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91767 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 17

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
8 suppliers192 claims192 services$33.47 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
6 suppliers110 claims110 services$73.46 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
6 suppliers106 claims305 services$29.40 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
8 suppliers59 claims325 services$16.70 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
5 suppliers66 claims368 services$12.69 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
8 suppliers129 claims129 services$47.43 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MANSURUR R. KHAN MD
Internal Medicine
1940 N ORANGE GROVE AVE, SUITE C
POMONA, CA 91767
Los Angeles County (909) 524-1940
JOSEPH ABRAHAM GORDON M.D.
Internal Medicine (Pulmonary Disease)
1940 N ORANGE GROVE AVE
POMONA, CA 91767
Los Angeles County (909) 865-6900

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nadir Eltahir's NPI number?

The NPI number for Nadir Eltahir is 1053389338. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is Nadir Eltahir located?

Nadir Eltahir practices at 1940 N Orange Grove Ave, Pomona, CA 91767. The listed phone number is (909) 865-6900.

What is Nadir Eltahir's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Nadir Eltahir enrolled in Medicare?

Yes. Nadir Eltahir is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Nadir Eltahir's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nadir Eltahir reassigns Medicare benefits to 2 organizations: Chaparral Medical Group, Inc. (Pomona, CA) and Quantum Healthcare Medical Associates Inc. (Colton, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nadir Eltahir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nadir Eltahir was last updated on September 13, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.