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GREGORY ADRIAN GREENBERG AGCNS-BC
NPI 1083267702
Clinical Nurse Specialist in Austin, TX

Active since July 22, 2019PECOS EnrolledAccepts Medicare Assignment
76.73/100
CMS Quality Rating
1301 W 38TH ST STE 403, AUSTIN, TX 78705(512) 593-7902 Get Directions Write a Review

NPPES record last updated: July 22, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gregory Adrian Greenberg Agcns-bc NPPES

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

GREGORY ADRIAN GREENBERG AGCNS-BC (NPI 1083267702) is an individual clinical nurse specialist in Austin, Texas, licensed in Texas (AP142303) and active in the NPI registry since July 2019. He is enrolled in Medicare PECOS, is affiliated with Round Rock Medical Center, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1083267702
Entity TypeIndividualMale
Primary Taxonomy364S00000X
Provider Legal NameGREGORY ADRIAN GREENBERGCredential: AGCNS-BC
Location Address1301 W 38TH ST STE 403Austin, TX 78705-1013
Mailing Address1408 Coleto StAustin, TX 78702 · (610) 716-9159
Phone(512) 593-7902
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJuly 22, 2019
✔ NPI 1083267702 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code364S00000X
License✔ Licensed in TX · AP142303
Definition
A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration.
1301 W 38TH ST STE 403, Austin, TX 78705
Open in Google Maps ↗

Other Identifiers 1

OtherAP142303TX · Texas State Board Of Nursing

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Moda Health Plan, Inc. 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

Gregory Adrian Greenberg Agcns-bc 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 ID1254661291
PECOS Enrollment IDI20190918001099
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 Gregory Greenberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Austin Infectious Disease Consultants, PA 080191
Same address
Infectious Disease
1301 W 38TH ST STE 403
Austin, TX 78705
  • Reassigned Medicare billing, Texas enrollment
  • 12 clinicians in this Medicare group
NPI 1205947710 (512) 459-0301

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 9

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 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.
313 services110 patients
Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow G0181
This service involves a physician overseeing your care while you receive Medicare-covered services from a home health agency. The care you're receiving is complex and involves various disciplines. The physician isn't physically present but regularly supervises your treatment to ensure optimal health outcomes.
100 services55 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.
73 services66 patients
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.
65 services43 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.
44 services35 patients
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
43 services41 patients

Hospital Affiliations CMS Care Compare 2

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

Round Rock Medical Center

Acute Care Hospitals · Round Rock, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450718
Location2400 Round Rock AveRound Rock, TX 78681 · Williamson County
Emergency services Birthing friendly

North Austin Medical Center

Acute Care Hospitals · Austin, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450809
Location12221 Mopac Expressway NorthAustin, TX 78758 · Travis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78705 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
$131.95 typical visit price
range $57.88 – $174.00
Typical copayment $32.98 (range $14.47 – $43.50)
Most-billed visit code 99204
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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.

76.73/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.27
Improvement Activities40
Cost53.41

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.

AUSTIN INFECTIOUS DISEASE CONSULTANTS, PA 080191
Internal Medicine (Infectious Disease)
1301 W 38TH ST STE 403
AUSTIN, TX 78705
Travis County (512) 459-0301
MR. GANESH SRINIVASAN KRISHNAMURTHI
Internal Medicine (Infectious Disease)
1301 W 38TH ST STE 403
AUSTIN, TX 78705
Travis County (512) 459-0301
MATTHEW WAYNE GIBBS R.PH.
Pharmacist
1301 W 38TH ST STE 403
AUSTIN, TX 78705
Travis County (512) 459-0639
MR. ZACHARY HUNTER TYLER CPHT
Pharmacy Technician
1301 W 38TH ST STE 403
AUSTIN, TX 78705
Travis County (512) 956-4499
STEPHANIE LYONS COBB D.O.
Internal Medicine (Infectious Disease)
1301 W 38TH ST STE 403
AUSTIN, TX 78705
Travis County (512) 459-0301
KELLI ANNE BAGWELL MD
Internal Medicine (Infectious Disease)
1301 W 38TH ST STE 403
AUSTIN, TX 78705
Travis County (512) 459-0301

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 Gregory Greenberg's NPI number?

The NPI number for Gregory Greenberg is 1083267702. It was assigned to this individual provider in the NPPES registry on July 22, 2019.

Where is Gregory Greenberg located?

Gregory Greenberg practices at 1301 W 38th St Ste 403, Austin, TX 78705. The listed phone number is (512) 593-7902.

What is Gregory Greenberg's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist with taxonomy code 364S00000X.

Is Gregory Greenberg enrolled in Medicare?

Yes. Gregory Greenberg 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 Gregory Greenberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Greenberg reassigns Medicare benefits to Austin Infectious Disease Consultants, PA 080191 (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 Gregory Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Greenberg accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Moda Health Plan, Inc. and Oscar Insurance Company list Gregory Greenberg 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 Gregory Greenberg affiliated with any hospitals?

According to CMS data, Gregory Greenberg is affiliated with Round Rock Medical Center and North Austin Medical Center.

When was this NPI record last updated?

The NPPES record for Gregory Greenberg was last updated on July 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.