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DR. DONALD WILLIAM DATLOW M.D.
NPI 1861697625
Internal Medicine in Chevy Chase, MD

Active since June 20, 2007PECOS Enrolled
4515 WILLARD AVE, APT S1015, CHEVY CHASE, MD 20815(301) 652-0215 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Donald William Datlow M.d. NPPES

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

DR. DONALD WILLIAM DATLOW M.D. (NPI 1861697625) is an individual internal medicine provider in Chevy Chase, Maryland, licensed in Maryland (D0000977) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861697625
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DONALD WILLIAM DATLOWCredential: M.D.
Location Address4515 WILLARD AVE, APT S1015Chevy Chase, MD 20815-3622
Mailing Address4515 Willard Ave, Apt S1015Chevy Chase, MD 20815-3622 · (301) 652-0215
Phone(301) 652-0215
Sole ProprietorYes
Enumeration DateJune 20, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1861697625 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D0000977
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4515 WILLARD AVE, Chevy Chase, MD 20815
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Other Identifiers 1

Medicare UPINE63703MH

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Donald William Datlow M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 20815 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MELISSA NICOLAOU M.A., LGPC
Counselor
4515 WILLARD AVE, APT. 2203S
CHEVY CHASE, MD 20815
Montgomery County (301) 980-5544

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 Donald Datlow's NPI number?

The NPI number for Donald Datlow is 1861697625. It was assigned to this individual provider in the NPPES registry on June 20, 2007.

Where is Donald Datlow located?

Donald Datlow practices at 4515 Willard Ave Apt S1015, Chevy Chase, MD 20815. The listed phone number is (301) 652-0215.

What is Donald Datlow's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Donald Datlow enrolled in Medicare?

Yes. Donald Datlow is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Donald Datlow was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.