AARON DAVID GREENBLATT MD
NPI 1013208198
Family Medicine - Addiction Medicine in Baltimore, MD
About Aaron David Greenblatt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON DAVID GREENBLATT MD (NPI 1013208198) is an individual addiction medicine provider in Baltimore, Maryland, licensed in Maryland (D0077774) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2011).
NPPES Registry Identity
Specialties & Licenses 2
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
Aaron David Greenblatt 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
2Medicare enrollment records show Aaron Greenblatt reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21223
- Reassigned Medicare billing, Maryland enrollment
- 85 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 89 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 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21223 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.
BALTIMORE, MD 21223
BALTIMORE, MD 21223
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 Aaron Greenblatt's NPI number?
The NPI number for Aaron Greenblatt is 1013208198. It was assigned to this individual provider in the NPPES registry on April 25, 2011.
Where is Aaron Greenblatt located?
Aaron Greenblatt practices at 1001 W Pratt St, Baltimore, MD 21223. The listed phone number is (443) 462-3420.
What is Aaron Greenblatt's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Addiction Medicine, with taxonomy code 207QA0401X.
Is Aaron Greenblatt enrolled in Medicare?
Yes. Aaron Greenblatt 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 Aaron Greenblatt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Greenblatt reassigns Medicare benefits to 2 organizations: University Of Maryland Family Medicine Associates, P.A. (Baltimore, MD) and University Of Maryland Psychiatry Associates, PA (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 Aaron Greenblatt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Aaron Greenblatt was last updated on September 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Aaron David Greenblatt, MD · NPI 1013208198
Addiction Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since April 25, 2011.
## Identity
- **NPI:** 1013208198 (Entity type: Individual)
- **Enumerated:** April 25, 2011
- **Primary specialty:** Family Medicine - Addiction Medicine · taxonomy 207QA0401X
- **State license:** D0077774 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 W PRATT ST, Baltimore, MD 21223-2679
- **Phone:** (443) 462-3420
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Family Medicine Associates, P.A. (NPI 1619784014, Baltimore, MD); University Of Maryland Psychiatry Associates, PA (NPI 1649292699, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2011
## Record status
- **NPPES last updated:** September 27, 2019
---
Source: [NPI Profile](https://npiprofile.com/npi/1013208198) · Data from the CMS NPPES public registry.