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MICHAEL L ARMSTRONG ARNP
NPI 1679710453
Nurse Practitioner in Tampa, FL

Active since January 15, 2009PECOS EnrolledAccepts Medicare Assignment
1 TAMPA GENERAL CIR, SUITE A327, TAMPA, FL 33606(813) 844-4396(813) 844-4972 Get Directions Write a Review

NPPES record last updated: August 27, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 27, 2026, Dec 21, 2020 (2 updates tracked since 2020).

About Michael L Armstrong Arnp NPPES

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

MICHAEL L ARMSTRONG ARNP (NPI 1679710453) is an individual nurse practitioner in Tampa, Florida, licensed in Florida (APRN9237484) and active in the NPI registry since January 2009. He is enrolled in Medicare PECOS, is affiliated with Tampa General Hospital, and maintains a secondary practice location in Tampa.

NPPES Registry Identity

NPI1679710453
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMICHAEL L ARMSTRONGCredential: ARNP
Location Address1 TAMPA GENERAL CIR, SUITE A327Tampa, FL 33606-3571
Mailing Address1 Tampa General Cir Ste A327Tampa, FL 33606-3571 · (813) 844-4396 · Fax (813) 844-4972
Phone(813) 844-4396
Fax(813) 844-4972
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateJanuary 15, 2009
Last NPPES UpdateAugust 27, 20262 updates tracked since enumeration
NPPES CertifiedAugust 27, 2026
✔ NPI 1679710453 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in FL · APRN9237484
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedAnesthesiology · Critical Care MedicineTaxonomy 207LC0200X · License APRN9237484 (FL)
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License ARNP9237484 (FL)
1 TAMPA GENERAL CIR, Tampa, FL 33606
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Other Names 1

Professional Name (2)Michael Lawrence Armstrong Arnp

Secondary Practice Location 1

Location 112902 Usf Magnolia DrTampa, FL 33612-9416 · Phone (813) 745-7365 · Fax (813) 449-8618

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

Michael L Armstrong Arnp 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 ID2860663002
PECOS Enrollment IDI20110920000857
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

2

Medicare enrollment records show Michael Armstrong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gulf-To-Bay Anesthesiology Associates LLC
Same address
Anesthesiology
1 TAMPA GENERAL CIR
Tampa, FL 33606
  • Reassigned Medicare billing, Florida enrollment
  • 1,287 clinicians in this Medicare group
NPI 1720039746 (813) 844-7000
H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc
5.5 mi
Hematology & Oncology
12902 USF MAGNOLIA DR
Tampa, FL 33612
  • Reassigned Medicare billing, Florida enrollment
  • 992 clinicians in this Medicare group
NPI 1306833595 (813) 745-4673

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 2

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.
44 services37 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
38 services28 patients

Hospital Affiliations CMS Care Compare

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

Tampa General Hospital

Acute Care Hospitals · Tampa, FL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100128
Location1 Tampa General CirTampa, FL 33606 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33606 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
$87.62 typical visit price
range $56.00 – $171.84
Typical copayment $21.90 (range $14.00 – $42.96)
Most-billed visit code 99203
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
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.

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.

ROBERT DAVID MORSE CRNA
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Hillsborough County (813) 844-4396
ALEXANDER NYIRABU MD
Student in an Organized Health Care Education/Training Program
1 TAMPA GENERAL CIR, J402
TAMPA, FL 33606
Hillsborough County (813) 844-7412
JESSICA L ZAVESKY
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR, SUITE A327
TAMPA, FL 33606
Hillsborough County (813) 844-4396
DR. RICARDO EMMANUEL RENDEL MD
Surgery (Surgical Critical Care)
1 TAMPA GENERAL CIR
TAMPA, FL 33606
Hillsborough County (813) 844-7000
SAMUEL THOMAS DAWSON CRNA
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR
TAMPA, FL 33606
Hillsborough County (813) 844-7000
WILLIAM MATTHEW MARTIN SRNA
Nurse Anesthetist, Certified Registered
1 TAMPA GENERAL CIR
TAMPA, FL 33606
Hillsborough County (501) 413-3150
KYLE FERNANDEZ PA-C
Physician Assistant
1 TAMPA GENERAL CIR
TAMPA, FL 33606
Hillsborough County (813) 844-7000
JENNIFER BARINAS
Psychologist (Clinical)
1 TAMPA GENERAL CIR
TAMPA, FL 33606
Hillsborough County (813) 844-3541

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 Michael Armstrong's NPI number?

The NPI number for Michael Armstrong is 1679710453. It was assigned to this individual provider in the NPPES registry on January 15, 2009. The provider is also known as Michael Lawrence Armstrong Arnp.

Where is Michael Armstrong located?

Michael Armstrong practices at 1 Tampa General Cir Suite A327, Tampa, FL 33606. The listed phone number is (813) 844-4396.

What is Michael Armstrong's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Michael Armstrong enrolled in Medicare?

Yes. Michael Armstrong 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 Michael Armstrong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Armstrong reassigns Medicare benefits to 2 organizations: Gulf-To-Bay Anesthesiology Associates LLC (Tampa, FL) and H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc (Tampa, FL). 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 Michael Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Michael Armstrong affiliated with any hospitals?

According to CMS data, Michael Armstrong is affiliated with Tampa General Hospital.

When was this NPI record last updated?

The NPPES record for Michael Armstrong was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 days 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.