DR. ARUN R RAO M.D.
NPI 1174547590
Internal Medicine - Hematology & Oncology in San Antonio, TX

Q: What is Arun Rao's NPI number?

The NPI number for Arun Rao is 1174547590. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Q: What is Arun Rao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Arun Rao was last updated on June 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since July 27, 2006PECOS EnrolledAccepts Medicare Assignment

87.86/100

CMS Quality Rating

3327 RESEARCH PLZ STE 102, SAN ANTONIO, TX 78235(210) 337-4494(210) 337-4650 Get Directions Write a Review

NPPES record last updated: June 8, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 8, 2022, Sep 2, 2020 (2 updates tracked since 2020).

On this page

About Dr. Arun R Rao M.d. NPPES

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

DR. ARUN R RAO M.D. (NPI 1174547590) is an individual hematology & oncology provider in San Antonio, Texas, licensed in Texas (L7129) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Baptist Medical Center, and is a graduate of Other (1985).

NPPES Registry Identity

NPI1174547590

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. ARUN R RAOCredential: M.D.

Location Address3327 RESEARCH PLZ STE 102San Antonio, TX 78235-5156

Mailing AddressPo Box 911230Dallas, TX 75391-1230 · (972) 997-8000 · Fax (972) 234-2987

Phone(210) 337-4494

Fax(210) 337-4650

Sole ProprietorNo

Medical School CMSOtherGraduated 1985

Enumeration DateJuly 27, 2006

Last NPPES UpdateJune 8, 20222 updates tracked since enumeration

NPPES CertifiedJune 8, 2022

✔ NPI 1174547590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in TX · L7129

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License L7129 (TX), 49434 (TN)

3327 RESEARCH PLZ STE 102, San Antonio, TX 78235

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Other Identifiers 5

MedicaidQ001744TN

Medicaid06806350MS

Other103I836550TN · Medicare

Other318281YJ6CMS · Medicare

Medicaid199498001AR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Dr. Arun R Rao M.d. 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 ID1759365794

PECOS Enrollment IDI20040616000937

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 Reassignment

Medicare enrollment records show Arun Rao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Texas Oncology PA

73 mi

Medical Oncology

4101 JAMES CASEY ST STE 100
Austin, TX 78745

Reassigned Medicare billing, Texas enrollment
1,054 clinicians in this Medicare group

NPI 1972770303 (972) 997-8000

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 36

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.

Injection, iron sucrose, 1 mg J1756

Iron sucrose injection is a treatment given to replenish iron in your body, often used when oral iron supplements are not effective. This helps your body make red blood cells, improving health and energy levels.

13,200 services18 patients

Injection, fosaprepitant, 1 mg J1453

Fosaprepitant is an anti-nausea medication given via injection. It's often used to prevent nausea and vomiting caused by chemotherapy. This injection blocks signals to the brain that trigger these symptoms, helping you feel better.

7,950 services13 patients

Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units Q5106

Epoetin alfa-epbx (Retacrit) is a biosimilar injection used for non-ESRD (End-Stage Renal Disease). It helps your body make more red blood cells, increasing your energy and well-being. It's usually given under the skin or into a vein by a healthcare professional.

1,330 services16 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

1,030 services21 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

690 services16 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

629 services179 patients

Injection, granisetron hydrochloride, 100 mcg J1626

Granisetron hydrochloride is an anti-nausea medication given by injection. It helps prevent nausea and vomiting often caused by cancer treatments like chemotherapy. Its dosage is measured in micrograms (mcg).

601 services13 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

543 services162 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

466 services167 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.

394 services162 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.

213 services74 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

210 services24 patients

Gammaglobulin (immune system protein) measurement 82784

Gammaglobulin measurement is a blood test that checks the levels of certain proteins (gammaglobulins) that the body uses to fight infections. High or low levels can indicate various health conditions. It's a simple, quick procedure with minimal discomfort.

171 services24 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

168 services41 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

164 services63 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

162 services63 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

162 services63 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

138 services31 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

100 services16 patients

Measurement of immunoglobulin light chains 83521

Measurement of immunoglobulin light chains is a blood test that helps to detect and monitor certain disorders related to your immune system. It measures the levels of specific proteins, known as light chains, produced by your immune cells.

98 services18 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

87 services26 patients

Lactate dehydrogenase (enzyme) level 83615

A Lactate Dehydrogenase level test measures the amount of this enzyme in your body. It's often done when tissue damage is suspected, as high levels can indicate issues like heart disease, lung disease, liver disease, or blood disorders. This test helps in diagnosing and monitoring these conditions.

84 services54 patients

Administration of additional new drug or substance into vein, 1 hour or less 96417

This procedure involves introducing a new drug or substance into your vein, typically via an IV drip. It lasts for an hour or less. This method allows the substance to quickly reach your bloodstream, ensuring rapid and effective treatment.

84 services17 patients

Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 86300

This is a blood test that measures the level of CA 15-3, a protein often higher in individuals with certain types of cancer. It helps monitor response to treatment and check for cancer recurrence. It's not a standalone diagnostic test but used alongside other evaluations.

70 services24 patients

Injection, diphenhydramine hcl, up to 50 mg J1200

Diphenhydramine HCL injection is a medicine given to alleviate symptoms of allergies, colds, or hay fever. It can also help with motion sickness and certain symptoms of Parkinson's disease. Up to 50 mg may be administered depending on your condition.

62 services13 patients

Infusion, normal saline solution , 1000 cc J7030

An infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.

48 services19 patients

Irrigation of implanted venous access drug delivery device 96523

Irrigation of an implanted venous access drug delivery device is a procedure to clean or unblock the device. This device is implanted under your skin to allow easy, frequent, and long-term access to your veins for medication delivery. The process involves flushing the device with a sterile solution to ensure it works properly.

44 services13 patients

Carcinoembryonic antigen (cea) protein level 82378

Carcinoembryonic Antigen (CEA) protein level is a blood test often used in cancer care. It measures the amount of CEA protein in your blood, which can increase in cases of certain types of cancer. It's used to monitor treatment progress and check for cancer recurrence.

40 services14 patients

Folic acid level, serum 82746

A Folic Acid Level, Serum test measures the amount of folic acid, a type of B vitamin, in your blood. This vitamin is important for cell growth and development. It's crucial for your body to function well. If your levels are low, it may indicate a deficiency, which can lead to health issues.

33 services28 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

33 services33 patients

Cyanocobalamin (vitamin b-12) level 82607

A Cyanocobalamin (Vitamin B-12) level test is a blood test that checks the amount of Vitamin B-12 in your body. This vitamin is vital for nerve function and the creation of red blood cells. Low or high levels could indicate a potential health issue.

32 services27 patients

Infusion into a vein for hydration, 31-60 minutes 96360

This is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.

30 services13 patients

Reticulated (young) platelet measurement 85055

Reticulated (young) platelet measurement is a blood test that helps determine the number of new platelets your body is producing. It's useful for diagnosing and monitoring conditions affecting platelet production, like anemia or chemotherapy effects.

27 services19 patients

Red blood count automated, with additional calculations 85046

An automated red blood cell count is a laboratory test that counts the number of red blood cells in your blood. This test also includes additional calculations to measure the size, volume, and hemoglobin concentration of these cells. It helps to identify any abnormalities in your blood.

24 services17 patients

Beta-2 microglobulin (protein) level 82232

The Beta-2 microglobulin level test measures the amount of this protein in your blood. It's often used to check kidney function or monitor certain cancers. High levels may indicate a health issue. The test involves a simple blood draw.

21 services11 patients

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries A9552

Fluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.

15 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Baptist Medical Center

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450058

Location111 Dallas StreetSan Antonio, TX 78205 · Bexar County

Emergency services Birthing friendly

Connally Memorial Medical Center

Acute Care Hospitals · Floresville, TX

OwnershipGovernment - Hospital District or Authority

CMS Certification Number450108

Location499 10th StreetFloresville, TX 78114 · Wilson County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78235 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

$166.88 typical visit price

range $54.84 – $166.88

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

Most-billed visit code 99205

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.86/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

78.3

Promoting Interoperability

100

Improvement Activities

Cost

75.5

Referred Medical Equipment & Supplies CMS DME claims 2

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

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

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims11 services$21.31 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

1 supplier11 claims11 services$119.49 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.

ANDREW OLGUIN APRN-CNP

Nurse Practitioner (Family)

3327 RESEARCH PLZ STE 102
SAN ANTONIO, TX 78235

Bexar County (210) 337-4494

KATELYN SANTANA WHITE NP

Nurse Practitioner (Family)

3327 RESEARCH PLZ STE 102
SAN ANTONIO, TX 78235

Bexar County (210) 867-9908

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 Arun Rao's NPI number?

The NPI number for Arun Rao is 1174547590. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Arun Rao located?

Arun Rao practices at 3327 Research Plz Ste 102, San Antonio, TX 78235. The listed phone number is (210) 337-4494.

What is Arun Rao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Arun Rao enrolled in Medicare?

Yes. Arun Rao 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 organization bills Medicare for Arun Rao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Arun Rao reassigns Medicare benefits to Texas Oncology PA (Austin, TX). The 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 Arun Rao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Arun Rao accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 9 other insurers list Arun Rao 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 Arun Rao affiliated with any hospitals?

According to CMS data, Arun Rao is affiliated with Baptist Medical Center and Connally Memorial Medical Center.

When was this NPI record last updated?

The NPPES record for Arun Rao was last updated on June 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.