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Efrem Lev Kleinman

Physician Assistant β€’ Baltimore, MD

Active NPI 1437933769 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

600 N Wolfe St
Baltimore, MD 212640010

Call 4109555000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

600 N Wolfe St

Baltimore, MD 212640010

Telephone 4109555000
Organization at the Same NPPES Address or Phone
Johns Hopkins University Facility NPI 1063483659

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Medstar Medical Group Ii Llc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2023

30-day fills

70 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$1,740 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021–2025.

Guide: How to read an Open Payments record

Years since graduation

3 years (graduated 2023)

CMS Doctors and Clinicians data list 2023 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2023

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Efrem Kleinman has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Efrem Kleinman as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Baltimore and Maryland

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Close to the middle for clinicians listed under Physician Assistant in Baltimore, MD (2024, 401 clinicians with data). Median for this group: 88. Middle half: 39 to 243.

Fewer Part D prescriptions than 65% of clinicians listed under Physician Assistant in Maryland (2024, 1,438 clinicians with data). Median for this group: 160. Middle half: 54 to 495.

Part D drug cost

Close to the middle for clinicians listed under Physician Assistant in Baltimore, MD (2024, 401 clinicians with data). Median for this group: $1,119. Middle half: $317 to $8,169.

Close to the middle for clinicians listed under Physician Assistant in Maryland (2024, 1,438 clinicians with data). Median for this group: $2,364. Middle half: $446 to $33,900.

1,194 active clinicians are listed under Physician Assistant with a practice address in Baltimore, MD (3,319 in Maryland).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Baltimore

7.6% of these 1,194 clinicians have the CMS telehealth indicator.

39.6% of these 1,194 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D Β· Data Year 2024
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Oxycodone Hcl Oxycodone Hcl 27 107 $98.53 25
Naloxone Hcl Naloxone Hcl 16 57 $1,266.64 16
Levetiracetam Levetiracetam 15 441 $318.97 β€”
Cyclobenzaprine Hcl Cyclobenzaprine Hcl 12 113 $55.63 12

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-10-02
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES MD N01611

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Maryland Board of Physicians.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20260626000549

Enrollment State Jurisdiction

MD

PECOS Control ID

1355798026

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Medstar Medical Group Ii Llc

2002 Medical Pkwy, Annapolis, MD 214013046

Phone: 4105736480

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

19 listed
Dr. John Baer , MD

Ophthalmology

NPI 1013984848

Doctor of Medicine (M.D.)

Dr. Daniel Brennan , MD

Internal Medicine - Nephrology

NPI 1023036597

Doctor of Medicine (M.D.)

Adam Bussells

Physician Assistant

NPI 1003468083
Dr. Erica Crosley , MD

Student in an Organized Health Care Education/Training Program

NPI 1023637121

Doctor of Medicine (M.D.)

Dr. Rodrigo De Castro Luna , MD

Radiology - Diagnostic Radiology

NPI 1023685799

Doctor of Medicine (M.D.)

NPI 1003347246

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Practice Location October 02, 2023

Registered at 600 N WOLFE ST, BALTIMORE, MD 212640010 (Tel: 4109555000)

πŸ“
Updated Business Mailing Address October 02, 2023

Registered at 6201 GREENLEIGH AVE, MIDDLE RIVER, MD 212202004 (Tel: 4109334380)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 02, 2023

Physician Assistant (license number reported to NPPES: MD N01611)

βœ…
NPI Profile Active August 18, 2023

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) August 18, 2023

Registered at 1800 ORLEANS ST, BALTIMORE, MD 212870010 (Tel: 4109555000)

πŸ“
Business Mailing Address (Initial Record) August 18, 2023

Registered at 6117 NORTHDALE RD, CATONSVILLE, MD 212281803 (Tel: 4435186015)

πŸ‘€
Provider Name / Credentials (Initial Record) August 18, 2023

Recorded as EFREM KLEINMAN

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 18, 2023

Physician Assistant

🟒
Initial NPI Registration & Enumeration August 18, 2023

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1437933769
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 18, 2023
Last Update: October 02, 2023
Sole Proprietor: No

Other Physician Assistants in Baltimore

All Physician Assistants in Baltimore

Mailing Address

6201 Greenleigh Ave

Middle River, MD 212202004

Phone: 4109334380

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.