DR. MAXIM ROSARIO MB BCH BAO D.PHIL
NPI 1740530534
Pathology - Clinical Pathology in Baltimore, MD
About Dr. Maxim Rosario Mb Bch Bao D.phil NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MAXIM ROSARIO MB BCH BAO D.PHIL (NPI 1740530534) is an individual clinical pathology provider in Baltimore, Maryland, licensed in Maryland (D84001) and active in the NPI registry since September 2012. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Maxim Rosario Mb Bch Bao D.phil is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Maxim Rosario reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21287
- Reassigned Medicare billing, District of Columbia enrollment
- 62 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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 4
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDSuburban Hospital
Acute Care Hospitals · Bethesda, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDJohns Hopkins Howard County Medical Center
Acute Care Hospitals · Columbia, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21205 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Maxim Rosario's NPI number?
The NPI number for Maxim Rosario is 1740530534. It was assigned to this individual provider in the NPPES registry on September 19, 2012.
Where is Maxim Rosario located?
Maxim Rosario practices at 720 Rutland Avenue Rm 659, Baltimore, MD 21205. The listed phone number is (314) 362-1451.
What is Maxim Rosario's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology, with taxonomy code 207ZC0006X.
Is Maxim Rosario enrolled in Medicare?
Yes. Maxim Rosario is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Maxim Rosario's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maxim Rosario reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (Baltimore, MD). 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 Maxim Rosario's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Maxim Rosario affiliated with any hospitals?
According to CMS data, Maxim Rosario is affiliated with Johns Hopkins Hospital, The, Suburban Hospital, Johns Hopkins Bayview Medical Center and Johns Hopkins Howard County Medical Center.
When was this NPI record last updated?
The NPPES record for Maxim Rosario was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Maxim Rosario, MB BCH BAO D.PHIL · NPI 1740530534
Clinical Pathology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since September 19, 2012.
## Identity
- **NPI:** 1740530534 (Entity type: Individual)
- **Enumerated:** September 19, 2012
- **Primary specialty:** Pathology - Clinical Pathology · taxonomy 207ZC0006X
- **State license:** D84001 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 720 RUTLAND AVENUE RM 659, Baltimore, MD 21205
- **Phone:** (314) 362-1451
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1477540904, Baltimore, MD); Johns Hopkins University (NPI 1023018413, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** July 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1740530534) · Data from the CMS NPPES public registry.