Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Anna O. Greene

Works at hospitals in Montgomery, AL · Prattville, AL · Alabama

Summary

Anna O. Greene is a nurse practitioner at 199 Hwy 231 N, Troy, AL 36081. Phone: (334) 280-1500. Accepts Medicare assignment. In 2024, Anna O. Greene had 448 Original Medicare patients and 956 services. NPI 1821527615. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Anna O. Greene, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Anna O. Greene accept Medicare assignment?
Yes. Medicare's clinician data says Anna O. Greene accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Anna O. Greene see?
In 2024, CMS data shows 448 Original Medicare patients and 956 services for Anna O. Greene. This counts Original Medicare only and measures volume, not quality.
What is Anna O. Greene's NPI number?
1821527615. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Anna O. Greene, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients448
Services billed to Medicare956
Different services or procedures15
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)309 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)285 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)147 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)69 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)68 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Ischemic heart disease63%
  • Arthritis58%
  • Atrial fibrillation48%
  • Diabetes40%

Hospitals where Anna O. Greene works

Medicare's Facility Affiliation Data lists Anna O. Greene at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Anna O. Greene is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anna O. Greene as a member of this group (CMS data updated October 2, 2026).

  • Health Care Authority for Baptist Health, An Affiliate of Uabhs277 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Alabama →

Other nurse practitioners in Troy

Clinicians with the same Medicare primary specialty in Troy, AL — not a recommendation.

All nurse practitioners in Troy →

Other clinicians in Health Care Authority for Baptist Health, An Affiliate of Uabhs

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

Graduation year2016
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821527615
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians