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ALAN S. GREENBAUM CRNA
NPI 1144312984
Nurse Anesthetist, Certified Registered in Nashville, TN

Active since September 29, 2006PECOS EnrolledAccepts Medicare Assignment
84.46/100
CMS Quality Rating
3601 THE VANDERBILT CLINIC, NASHVILLE, TN 37232(615) 936-2000 Get Directions Write a Review

NPPES record last updated: October 24, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 24, 2022, Sep 30, 2022, Sep 22, 2022 (3 updates tracked since 2022).

About Alan S. Greenbaum Crna NPPES

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

ALAN S. GREENBAUM CRNA (NPI 1144312984) is an individual nurse anesthetist, certified registered in Nashville, Tennessee, licensed in Tennessee (31846) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Vanderbilt University Medical Center, and maintains a secondary practice location in Macon.

NPPES Registry Identity

NPI1144312984
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameALAN S. GREENBAUMCredential: CRNA
Location Address3601 THE VANDERBILT CLINICNashville, TN 37232-2102
Mailing Address3841 Green Hills Village DrNashville, TN 37215-2691
Phone(615) 936-2000
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateSeptember 29, 2006
Last NPPES UpdateOctober 24, 20223 updates tracked since enumeration
NPPES CertifiedOctober 24, 2022
✔ NPI 1144312984 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Licenses✔ Licensed in TN · 31846✔ Licensed in GA · RN123966
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
3601 THE VANDERBILT CLINIC, Nashville, TN 37232
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Secondary Practice Location 1

Location 1777 Hemlock StMacon, GA 31201-2102 · Phone (478) 633-6706 · Fax (478) 633-5384

Other Identifiers 5

Medicaid000932874CGA
Other430067623GA · Railroad Mcr - Mccg
Medicaid000932874AGA
Other344323GA · Wellcare Cmo - Mccg
Other000932874AGA · Peachstate Cmo - Mccg

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Cigna Healthcare, Oscar Insurance Company.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

Alan S. Greenbaum Crna 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 ID4385629179
PECOS Enrollment IDI20221013003784, I20260708001965
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

6

Medicare enrollment records show Alan Greenbaum reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Vanderbilt University Medical Center
0.5 mi
Internal Medicine
1301 22ND AVE S
Nashville, TN 37232
  • Reassigned Medicare billing, Tennessee enrollment
  • 4,711 clinicians in this Medicare group
NPI 1104202761 (615) 936-2000
Lifelinc Anesthesia II, PLLC
24 mi
Anesthesiology
100 NORTHCREST DR
Springfield, TN 37172
  • Reassigned Medicare billing, Tennessee enrollment
  • 204 clinicians in this Medicare group
NPI 1821397233 (901) 844-1590
Integrated Anesthesia Services, Plc
33 mi
Nurse Anesthetist, Certified Registered
704 HIGHWAY 70 E
Dickson, TN 37055
  • Reassigned Medicare billing, Tennessee enrollment
  • 58 clinicians in this Medicare group
NPI 1194736108 (615) 620-2320
T J Samson Community Hospital
77 mi
Family Medicine
310 N L ROGERS WELLS BLVD
Glasgow, KY 42141
  • Reassigned Medicare billing, Kentucky enrollment
  • 323 clinicians in this Medicare group
NPI 1477609865 (270) 651-1111
Sweet Dreams Anesthesia Inc
115 mi
Nurse Anesthetist, Certified Registered
2108 E 3RD ST
Chattanooga, TN 37404
  • Reassigned Medicare billing, Tennessee enrollment
  • 144 clinicians in this Medicare group
NPI 1508133497 (423) 267-0466
Lifelinc Anesthesia Viii PLLC
204 mi
Anesthesiology
435 2ND ST
Newport, TN 37821
  • Reassigned Medicare billing, Tennessee enrollment
  • 238 clinicians in this Medicare group
NPI 1679265052 (423) 625-2200

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

Hospital Affiliations CMS Care Compare 3

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

Vanderbilt University Medical Center

Acute Care Hospitals · Nashville, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440039
Location1211 Medical Center DriveNashville, TN 37232 · Davidson County
Emergency services Birthing friendly

Cookeville Regional Medical Center

Acute Care Hospitals · Cookeville, TN
1/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number440059
Location1 Medical Center BoulevardCookeville, TN 38501 · Putnam County
Emergency services Birthing friendly

Vanderbilt Wilson County Hospital

Acute Care Hospitals · Lebanon, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440193
Location1411 Baddour ParkwayLebanon, TN 37087 · Wilson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37232 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
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
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.

84.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality94.32
Improvement Activities40
Cost46.21

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.

DR. ENGLISH FLACK MD
Pediatrics (Pediatric Cardiology)
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 322-3000
DANIEL K BARRETT APRN
Nurse Practitioner (Acute Care)
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 322-3000
JACQUELYN L. GARNER PNP
Nurse Practitioner (Pediatrics)
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 322-3000
DR. ROBERT JAMES LENTZ M.D.
Internal Medicine (Pulmonary Disease)
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 322-3000
LYNN HOLLIDAY M.D.
Family Medicine
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 322-3000
DR. HEATHER KRETH PSY.D
Psychologist (Clinical Child & Adolescent)
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 936-2000
AARON WESLEY SCOTT APN
Nurse Practitioner
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 936-2000
DR. COLLEEN M KIERNAN M.D.
Surgery (Surgical Oncology)
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232
Davidson County (615) 322-3000

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 Alan Greenbaum's NPI number?

The NPI number for Alan Greenbaum is 1144312984. It was assigned to this individual provider in the NPPES registry on September 29, 2006.

Where is Alan Greenbaum located?

Alan Greenbaum practices at 3601 The Vanderbilt Clinic, Nashville, TN 37232. The listed phone number is (615) 936-2000.

What is Alan Greenbaum's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Alan Greenbaum enrolled in Medicare?

Yes. Alan Greenbaum 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 Alan Greenbaum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alan Greenbaum reassigns Medicare benefits to 6 organizations: Vanderbilt University Medical Center (Nashville, TN), Lifelinc Anesthesia II, PLLC (Springfield, TN), Integrated Anesthesia Services, Plc (Dickson, TN), T J Samson Community Hospital (Glasgow, KY), Sweet Dreams Anesthesia Inc (Chattanooga, TN) and 1 more organization, listed in the Medicare section above. 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 Alan Greenbaum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alan Greenbaum accept?

Health plans from Alliant Health Plans, Inc., Cigna Healthcare and Oscar Insurance Company list Alan Greenbaum 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 Alan Greenbaum affiliated with any hospitals?

According to CMS data, Alan Greenbaum is affiliated with Vanderbilt University Medical Center, Cookeville Regional Medical Center and Vanderbilt Wilson County Hospital.

When was this NPI record last updated?

The NPPES record for Alan Greenbaum was last updated on October 24, 2022. 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.