MARY HAZEL KLEIN CRNA
NPI 1649254053
Nurse Anesthetist, Certified Registered in Tallahassee, FL
About Mary Hazel Klein Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY HAZEL KLEIN CRNA (NPI 1649254053) is an individual nurse anesthetist, certified registered in Tallahassee, Florida, licensed in Florida (ARNP9220150) and active in the NPI registry since November 2005. She is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted 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
Mary Hazel Klein 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.
Medicare Billing Reassignments
7Medicare enrollment records show Mary Klein reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange Park, FL 32003
- Reassigned Medicare billing, Florida enrollment
- 876 clinicians in this Medicare group
Orange City, FL 32763
- Reassigned Medicare billing, Florida enrollment
- 129 clinicians in this Medicare group
Maitland, FL 32751
- Reassigned Medicare billing, Florida enrollment
- 2,356 clinicians in this Medicare group
Altamonte Springs, FL 32701
- Reassigned Medicare billing, Florida enrollment
- 35 clinicians in this Medicare group
Bradenton, FL 34208
- Reassigned Medicare billing, Florida enrollment
- 1,887 clinicians in this Medicare group
Sarasota, FL 34231
- Reassigned Medicare billing, Florida enrollment
- 134 clinicians in this Medicare group
Merritt Island, FL 32953
- Reassigned Medicare billing, Florida enrollment
- 103 clinicians in this Medicare group
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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 32308 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
TALLAHASSEE, FL 32308
TALLAHASSEE, FL 32308
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 Mary Klein's NPI number?
The NPI number for Mary Klein is 1649254053. It was assigned to this individual provider in the NPPES registry on November 30, 2005. The provider is also known as Mary Hazel Bartly.
Where is Mary Klein located?
Mary Klein practices at 2173A Centerville Pl Anesthesiology Associates Of Tallahassee, Tallahassee, FL 32308. The listed phone number is (850) 385-0144.
What is Mary Klein's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary Klein enrolled in Medicare?
Yes. Mary Klein 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 Mary Klein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Klein reassigns Medicare benefits to 7 organizations: Fleming Island Anesthesia LLC (Orange Park, FL), Orange City Anesthesia Services LLC (Orange City, FL), Us Anesthesia Partners Of Florida Inc. (Maitland, FL), Amsurg Altamonte Springs Anesthesia, LLC (Altamonte Springs, FL), Anesthesia Dynamics LLC (Bradenton, FL) and 2 more organizations, 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 Mary Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Klein accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Mary Klein 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 Mary Klein was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Mary Hazel Klein, CRNA · NPI 1649254053
Nurse Anesthetist, Certified Registered physician in Tallahassee, Florida. Individual provider, active in the CMS NPPES registry since November 30, 2005.
## Identity
- **NPI:** 1649254053 (Entity type: Individual)
- **Enumerated:** November 30, 2005
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** ARNP9220150 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 2173A CENTERVILLE PL, ANESTHESIOLOGY ASSOCIATES OF TALLAHASSEE, Tallahassee, FL 32308-4356
- **Phone:** (850) 385-0144 · **Fax:** (850) 385-0146
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Fleming Island Anesthesia LLC (NPI 1487945895, Orange Park, FL); Orange City Anesthesia Services LLC (NPI 1972882314, Orange City, FL); Us Anesthesia Partners Of Florida Inc. (NPI 1518910520, Maitland, FL); Amsurg Altamonte Springs Anesthesia, LLC (NPI 1306187513, Altamonte Springs, FL); Anesthesia Dynamics LLC (NPI 1073001012, Bradenton, FL); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649254053) · Data from the CMS NPPES public registry.