MAX W KLEIN MD
NPI 1861954836
Internal Medicine - Cardiovascular Disease in Largo, FL
About Max W Klein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAX W KLEIN MD (NPI 1861954836) is an individual cardiovascular disease provider in Largo, Florida, licensed in Florida (ME171502) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Mease Dunedin Hospital, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
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
Max W Klein Md 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
3Medicare enrollment records show Max Klein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Largo, FL 33777
- Reassigned Medicare billing, Florida enrollment
- Medicare enrollment name: Morton Plant Health Services Inc
- 136 clinicians in this Medicare group
Clearwater, FL 33759
- Reassigned Medicare billing, Florida enrollment
- 2,009 clinicians in this Medicare group
Safety Harbor, FL 34695
- Reassigned Medicare billing, Florida enrollment
- 40 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mease Dunedin Hospital
Acute Care Hospitals · Dunedin, FLMorton Plant North Bay Hospital
Acute Care Hospitals · New Port Richey, FLMorton Plant Hospital
Acute Care Hospitals · Clearwater, FLMease Countryside Hospital
Acute Care Hospitals · Safety Harbor, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33777 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Max Klein's NPI number?
The NPI number for Max Klein is 1861954836. It was assigned to this individual provider in the NPPES registry on April 1, 2019.
Where is Max Klein located?
Max Klein practices at 8787 Bryan Dairy Rd Ste 320, Largo, FL 33777. The listed phone number is (727) 724-8611.
What is Max Klein's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Max Klein enrolled in Medicare?
Yes. Max 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 Max Klein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Max Klein reassigns Medicare benefits to 3 organizations: Morton Plant Mease Health Services Inc (Largo, FL), Baycare Medical Group, Inc. (Clearwater, FL) and Morton Plant Mease Diagnostic Cardiology LLC (Safety Harbor, 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 Max Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Max Klein accept?
Health plans from AvMed, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Max 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.
Is Max Klein affiliated with any hospitals?
According to CMS data, Max Klein is affiliated with Mease Dunedin Hospital, Morton Plant North Bay Hospital, Morton Plant Hospital and Mease Countryside Hospital.
When was this NPI record last updated?
The NPPES record for Max Klein was last updated on October 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Max W Klein, MD · NPI 1861954836
Cardiovascular Disease physician in Largo, Florida. Individual provider, active in the CMS NPPES registry since April 1, 2019.
## Identity
- **NPI:** 1861954836 (Entity type: Individual)
- **Enumerated:** April 1, 2019
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** ME171502 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 8787 BRYAN DAIRY RD STE 320, Largo, FL 33777-1256
- **Phone:** (727) 724-8611 · **Fax:** (727) 724-0425
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Morton Plant Mease Health Services Inc (NPI 1528049962, Largo, FL); Baycare Medical Group, Inc. (NPI 1043269871, Clearwater, FL); Morton Plant Mease Diagnostic Cardiology LLC (NPI 1427394980, Safety Harbor, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** October 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1861954836) · Data from the CMS NPPES public registry.