PAUL SACKSTEIN
NPI 1639639792
Internal Medicine - Hematology & Oncology in Upper Marlboro, MD

Active since March 23, 2019PECOS EnrolledAccepts Medicare Assignment
1221 MERCANTILE LN, UPPER MARLBORO, MD 20774(301) 618-5500 Get Directions Write a Review

NPPES record last updated: June 12, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 12, 2025, Mar 23, 2019 (2 updates tracked since 2019).

About Paul Sackstein NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PAUL SACKSTEIN (NPI 1639639792) is an individual hematology & oncology provider in Upper Marlboro, Maryland, licensed in Maryland (D0103377) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Connecticut School Of Medicine (2019).

NPPES Registry Identity

NPI1639639792
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NamePAUL SACKSTEIN
Location Address1221 MERCANTILE LNUpper Marlboro, MD 20774-5374
Mailing Address3800 Reservoir Rd NwWashington, DC 20007-2113 · (202) 444-8168 · Fax (877) 303-1460
Sole ProprietorNo
Medical School CMSUniversity Of Connecticut School Of MedicineGraduated 2019
Enumeration DateMarch 23, 2019
Last NPPES UpdateJune 12, 20252 updates tracked since enumeration
NPPES CertifiedJune 12, 2025
NPI 1639639792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in MD · D0103377
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1221 MERCANTILE LN, Upper Marlboro, MD 20774

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Paul Sackstein 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.

PECOS PAC ID2365944964
PECOS Enrollment IDI20250904000125
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20774 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Psychiatry & Neurology (Psychiatry)
1221 MERCANTILE LN
LARGO, MD 20774
Anesthesiology
1221 MERCANTILE LN
UPPER MARLBORO, MD 20774
Internal Medicine
1221 MERCANTILE LN, KAISER PERMANENTE LARGO MEDICAL CENTER
LARGO, MD 20774
Obstetrics & Gynecology (Maternal & Fetal Medicine)
1221 MERCANTILE LN, DEPT OF OBGYN
LARGO, MD 20774
Anesthesiology
1221 MERCANTILE LN
UPPER MARLBORO, MD 20774
Physician Assistant
1221 MERCANTILE LN, KAISER PERMANENTE LARGO MEDICAL CENTER
LARGO, MD 20774
Urology
1221 MERCANTILE LN, KAISER PERMANENTE DEPARTMENT OF UROLOGY
LARGO, MD 20774
Obstetrics & Gynecology
1221 MERCANTILE LN
UPPER MARLBORO, MD 20774

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 Paul Sackstein's NPI number?

The NPI number for Paul Sackstein is 1639639792. It was assigned to this individual provider in the NPPES registry on March 23, 2019.

Where is Paul Sackstein located?

Paul Sackstein practices at 1221 Mercantile Ln, Upper Marlboro, MD 20774. The listed phone number is (301) 618-5500.

What is Paul Sackstein's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Paul Sackstein enrolled in Medicare?

Yes. Paul Sackstein 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.

When was this NPI record last updated?

The NPPES record for Paul Sackstein was last updated on June 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.