CARL ROGASTON WILLIS M.D.
NPI 1154376259
Internal Medicine - Hematology & Oncology in Nashville, TN

Q: What is Carl Willis's NPI number?

The NPI number for Carl Willis is 1154376259. It was assigned to this individual provider in the NPPES registry on May 24, 2006.

Q: What is Carl Willis'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 Carl Willis was last updated on September 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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 May 24, 2006PECOS EnrolledAccepts Medicare Assignment

95.2/100

CMS Quality Rating

322 22ND AVE N STE 400, NASHVILLE, TN 37203(615) 320-5090(615) 320-1225 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 17, 2025, Mar 22, 2017 (2 updates tracked since 2017).

On this page

About Carl Rogaston Willis M.d. NPPES

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

CARL ROGASTON WILLIS M.D. (NPI 1154376259) is an individual hematology & oncology provider in Nashville, Tennessee, licensed in Tennessee (037952) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Tristar Northcrest Medical Center, and is a graduate of University Of Alabama School Of Medicine (1993).

NPPES Registry Identity

NPI1154376259

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameCARL ROGASTON WILLISCredential: M.D.

Location Address322 22ND AVE N STE 400Nashville, TN 37203-1870

Mailing Address2004 Hayes St Ste 800Nashville, TN 37203-2659 · (615) 329-0570 · Fax (615) 329-0579

Phone(615) 320-5090

Fax(615) 320-1225

Sole ProprietorNo

Medical School CMSUniversity Of Alabama School Of MedicineGraduated 1993

Enumeration DateMay 24, 2006

Last NPPES UpdateSeptember 17, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 17, 2025

✔ NPI 1154376259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in TN · 037952

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.

322 22ND AVE N STE 400, Nashville, TN 37203

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Other Identifiers 2

Other4090607TN · Bcbs Of Tn Ind Provider #

Medicaid3894844TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama 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

Carl Rogaston Willis 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 ID6709864010

PECOS Enrollment IDI20040713000330

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 Carl Willis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tennessee Oncology,pllc

0.1 mi

Diagnostic Radiology

2018 MURPHY AVE, STE 200
Nashville, TN 37203

Reassigned Medicare billing, Tennessee enrollment
464 clinicians in this Medicare group

NPI 1043310428 (615) 320-7387

Verdi Oncology Tennessee, PC

0.3 mi

Hematology & Oncology

335 24TH AVE N STE 200
Nashville, TN 37203

Reassigned Medicare billing, Tennessee enrollment
35 clinicians in this Medicare group

NPI 1336779974 (615) 329-7640

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 13

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, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

3,600 services26 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.

750 services18 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.

382 services144 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.

281 services138 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.

185 services62 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.

180 services122 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.

97 services16 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.

83 services17 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.

80 services12 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.

71 services31 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.

65 services14 patients

Unclassified drugs J3490

Unclassified drugs are medications that don't fit into an existing category or class due to their unique properties or uses. They may be used for various conditions and their effects may differ widely. Always ask your healthcare provider for more information about these drugs.

61 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

18 services13 patients

Hospital Affiliations CMS Care Compare 4

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

Tristar Northcrest Medical Center

Acute Care Hospitals · Springfield, TN

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number440065

Location100 Northcrest DriveSpringfield, TN 37172 · Robertson County

Emergency services Birthing friendly

Ascension Saint Thomas Hospital

Acute Care Hospitals · Nashville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440082

Location4220 Harding Rd, PO Box 380Nashville, TN 37205 · Davidson County

Emergency services Birthing friendly

Tristar Centennial Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440161

Location2300 Patterson StreetNashville, TN 37203 · Davidson County

Emergency services Birthing friendly

Tristar Hendersonville Medical Center

Acute Care Hospitals · Hendersonville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440194

Location355 New Shackle Island RdHendersonville, TN 37075 · Sumner County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37203 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

$160.89 typical visit price

range $52.64 – $160.89

Typical copayment $40.22 (range $13.16 – $40.22)

Most-billed visit code 99205

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

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.

95.2/100

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

Scored as part of a group practice

Quality

90.4

Improvement Activities

Other Providers at the Same Location NPPES 6

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

MISS ASHLEY BROOKE LLOYD APRN

Nurse Practitioner