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SUSAN LEIGH WILLIAMSON M.D.
NPI 1437392917
Internal Medicine in Nashville, TN

Active since April 13, 2009PECOS EnrolledAccepts Medicare Assignment
4220 HARDING PIKE, NASHVILLE, TN 37205(615) 222-6977(615) 222-5322 Get Directions Write a Review

NPPES record last updated: August 3, 2023. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Susan Leigh Williamson M.d. NPPES

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

SUSAN LEIGH WILLIAMSON M.D. (NPI 1437392917) is an individual internal medicine provider in Nashville, Tennessee, licensed in Tennessee (47777) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Denver, and is a graduate of Texas A & M University System, Hsc, College Of Medicine (2009).

NPPES Registry Identity

NPI1437392917
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameSUSAN LEIGH WILLIAMSONCredential: M.D.
Location Address4220 HARDING PIKENashville, TN 37205-2005
Mailing Address500 Great Circle Rd, Suite 200Nashville, TN 37228-1309 · (615) 222-6977 · Fax (615) 222-5322
Phone(615) 222-6977
Fax(615) 222-5322
Sole ProprietorNo
Medical School CMSTexas A & M University System, Hsc, College Of MedicineGraduated 2009
Enumeration DateApril 13, 2009
Last NPPES UpdateAugust 3, 2023
NPPES CertifiedAugust 3, 2023
✔ NPI 1437392917 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TN · 47777
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License DR.0071263 (CO), 47777 (TN)
4220 HARDING PIKE, Nashville, TN 37205
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Other Names 1

Former Name (1)Susan Leigh Greenhut M.d.

Secondary Practice Location 1

Location 12525 S Downing StDenver, CO 80210-5817 · Phone (303) 715-7184 · Fax (303) 765-6228

Other Identifiers 3

Medicaid1528892TN
Medicaid7100201060KY
Other6011200TN · Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Susan Leigh Williamson 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 ID547425043
PECOS Enrollment IDI20230818001773
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.

Areas of Expertise CMS Part B claims 4

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.
73 services43 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.
63 services39 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.
27 services27 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37205 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
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.

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.

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
2 suppliers19 claims19 services$88.46 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
2 suppliers13 claims13 services$34.30 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 20

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

MEGAN DESAI M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
4220 HARDING PIKE
NASHVILLE, TN 37205
Davidson County (615) 222-6726
WILLIAM MATTHEW BIBB PHARM.D., BCGP
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
4220 HARDING PIKE
NASHVILLE, TN 37205
Davidson County (615) 222-3764
DR. MATTHEW SCHUYLER-AUSTIN JOSEPH MD
Hospitalist
4220 HARDING PIKE, SUITE 500
NASHVILLE, TN 37205
Davidson County (615) 222-6977
CHRISTOPHER JUNSIK SHIN MD
Internal Medicine
4220 HARDING PIKE
NASHVILLE, TN 37205
Davidson County (615) 222-2111
KELLEY BAXTER PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
4220 HARDING PIKE
NASHVILLE, TN 37205
Davidson County (615) 222-4711
GREGG CHRISTIAN SHEPARD MD
Internal Medicine (Hematology & Oncology)
4220 HARDING PIKE, S&E BUILDING SUITE 200
NASHVILLE, TN 37205
Davidson County (615) 385-3751
JESSICA TAYLOR HODGE PA-C
Physician Assistant
4220 HARDING PIKE
NASHVILLE, TN 37205
Davidson County (615) 222-2111
KATHERINE SPIVEY PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
4220 HARDING PIKE
NASHVILLE, TN 37205
Davidson County (615) 222-4500

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 Susan Williamson's NPI number?

The NPI number for Susan Williamson is 1437392917. It was assigned to this individual provider in the NPPES registry on April 13, 2009. The provider is also known as Susan Leigh Greenhut M.D..

Where is Susan Williamson located?

Susan Williamson practices at 4220 Harding Pike, Nashville, TN 37205. The listed phone number is (615) 222-6977.

What is Susan Williamson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Susan Williamson enrolled in Medicare?

Yes. Susan Williamson 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.

What insurance does Susan Williamson accept?

Health plans from Oscar Insurance Company list Susan Williamson 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.

When was this NPI record last updated?

The NPPES record for Susan Williamson was last updated on August 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.