Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RAZIUDDIN AHMED MD
NPI 1952562407
Internal Medicine - Pulmonary Disease in Sugar Land, TX

Q: What is Raziuddin Ahmed's NPI number?

The NPI number for Raziuddin Ahmed is 1952562407. It was assigned to this individual provider in the NPPES registry on June 18, 2008.

Q: What is Raziuddin Ahmed's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Raziuddin Ahmed was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.

Active since June 18, 2008PECOS EnrolledAccepts Medicare Assignment

16659 SOUTHWEST FREEWAY, SUITE 421, SUGAR LAND, TX 77479(281) 325-0005(282) 325-0039 Get Directions Write a Review

NPPES record last updated: October 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 14, 2026, Jan 6, 2026 (2 updates tracked since 2026).

On this page

About Raziuddin Ahmed Md NPPES

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

RAZIUDDIN AHMED MD (NPI 1952562407) is an individual pulmonary disease provider in Sugar Land, Texas, licensed in Texas (P5920) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1952562407

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameRAZIUDDIN AHMEDCredential: MD

Location Address16659 SOUTHWEST FREEWAY, SUITE 421Sugar Land, TX 77479-2661

Mailing Address16659 Southwest Freeway, Suite 421Sugar Land, TX 77479-2661 · (281) 325-0005 · Fax (282) 325-0039

Phone(281) 325-0005

Fax(282) 325-0039

Sole ProprietorNo

Medical School CMSOtherGraduated 2002

Enumeration DateJune 18, 2008

Last NPPES UpdateOctober 14, 20262 updates tracked since enumeration

NPPES CertifiedOctober 14, 2026

✔ NPI 1952562407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in TX · P5920

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 51778 (WI)

Also ListedHospitalistTaxonomy 208M00000X · License MD.203122 (LA)

16659 SOUTHWEST FREEWAY, SUITE 421, Sugar Land, TX 77479

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Other Identifiers 1

Medicaid1885231LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CHRISTUS Health Plan.Insurance ›

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

Raziuddin Ahmed 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 ID6204901564

PECOS Enrollment IDI20130621000483

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

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

Houston Methodist Specialty Physicians

15 mi

Otolaryngology

7550 GREENBRIAR DR STE 600
Houston, TX 77030

Reassigned Medicare billing, Texas enrollment
1,579 clinicians in this Medicare group

NPI 1902614332 (281) 414-6055

Tmh Physician Associates PLLC

16 mi

Ophthalmology

6550 FANNIN ST, SUITE 447
Houston, TX 77030

Reassigned Medicare billing, Texas enrollment
2,407 clinicians in this Medicare group

NPI 1275779225 (713) 441-7389

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 17

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

3,378 services446 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.

1,021 services164 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

720 services352 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

238 services202 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

169 services156 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.

161 services105 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

105 services102 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

95 services93 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

95 services92 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

86 services86 patients

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.

71 services30 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

42 services42 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

31 services30 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

19 services18 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

19 services19 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.

19 services19 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

13 services12 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450358

Location6565 FanninHouston, TX 77030 · Harris County

Emergency services Birthing friendly

Houston Methodist Sugarland Hospital

Acute Care Hospitals · Sugar Land, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450820

Location16655 Southwest FreewaySugar Land, TX 77479 · Fort Bend County

Emergency services Birthing friendly

Memorial Hermann Sugar Land Hospital

Acute Care Hospitals · Sugar Land, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450848

Location17500 W Grand Parkway SouthSugar Land, TX 77479 · Fort Bend County

Emergency services Birthing friendly

St Luke's Sugar Land Hospital

Acute Care Hospitals · Sugar Land, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number670053

Location1317 Lake Pointe ParkwaySugar Land, TX 77478 · Fort Bend County

Emergency services Birthing friendly

Houston Methodist West Hospital

Acute Care Hospitals · Houston, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number670077

Location18500 Katy FreewayHouston, TX 77094 · Harris County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77479 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

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 24

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

10 suppliers181 claims181 services$33.06 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

9 suppliers100 claims100 services$70.75 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

9 suppliers97 claims273 services$28.09 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

7 suppliers81 claims470 services$15.31 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

10 suppliers55 claims324 services$12.71 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

11 suppliers141 claims141 services$46.24 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

13 suppliers125 claims125 services$14.50 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

6 suppliers11 claims11 services$8.81 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

8 suppliers52 claims52 services$9.91 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

13 suppliers227 claims1,312 services$1.73 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

3 suppliers13 claims13 services$4.84 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

11 suppliers87 claims87 services$10.91 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

7 suppliers67 claims67 services$14.57 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

4 suppliers29 claims29 services$917.33 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

1 supplier28 claims28 services$63.15 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

4 suppliers23 claims23 services$109.39 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

7 suppliers256 claims256 services$26.23 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

12 suppliers203 claims203 services$67.95 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

5 suppliers101 claims101 services$31.32 avg. paid by Medicare

Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms J7605

DME-Drugs Administered Through DME · category DG006N

2 suppliers13 claims780 services$4.65 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

5 suppliers15 claims2,193 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

20 suppliers37 claims4,200 services$0.09 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

6 suppliers23 claims1,290 services$0.83 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

25 suppliers58 claims58 services$25.18 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

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

SUNEESH GOPALAN NAIR MD

Internal Medicine (Pulmonary Disease)

16659 SOUTHWEST FREEWAY, SUITE 421
SUGAR LAND, TX 77479

Fort Bend County (281) 325-0005

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 Raziuddin Ahmed's NPI number?

The NPI number for Raziuddin Ahmed is 1952562407. It was assigned to this individual provider in the NPPES registry on June 18, 2008.

Where is Raziuddin Ahmed located?

Raziuddin Ahmed practices at 16659 Southwest Freeway, Suite 421, Sugar Land, TX 77479. The listed phone number is (281) 325-0005.

What is Raziuddin Ahmed's specialty?

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

Is Raziuddin Ahmed enrolled in Medicare?

Yes. Raziuddin Ahmed 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 Raziuddin Ahmed's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Raziuddin Ahmed reassigns Medicare benefits to 2 organizations: Houston Methodist Specialty Physicians (Houston, TX) and Tmh Physician Associates PLLC (Houston, TX). 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 Raziuddin Ahmed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Raziuddin Ahmed accept?

Health plans from CHRISTUS Health Plan list Raziuddin Ahmed as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Raziuddin Ahmed affiliated with any hospitals?

According to CMS data, Raziuddin Ahmed is affiliated with Houston Methodist Hospital, Houston Methodist Sugarland Hospital, Memorial Hermann Sugar Land Hospital, St Luke's Sugar Land Hospital and Houston Methodist West Hospital.

When was this NPI record last updated?

The NPPES record for Raziuddin Ahmed was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.