DR. ADAM JOSEPH MAIER DO
NPI 1003378696
Internal Medicine - Infectious Disease in Bethesda, MD

Q: What is Adam Maier's NPI number?

The NPI number for Adam Maier is 1003378696. It was assigned to this individual provider in the NPPES registry on April 2, 2019.

Q: What is Adam Maier's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Adam Maier was last updated on April 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since April 02, 2019PECOS Enrolled

8901 WISCONSIN AVE, BETHESDA, MD 20889(301) 295-4000(301) 319-2172 Get Directions Write a Review

NPPES record last updated: April 1, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 1, 2025, Aug 5, 2024, Jun 13, 2024 and 2 more (5 updates tracked since 2019).

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About Dr. Adam Joseph Maier Do NPPES

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

DR. ADAM JOSEPH MAIER DO (NPI 1003378696) is an individual infectious disease provider in Bethesda, Maryland, licensed in Nebraska (2232) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Diego.

NPPES Registry Identity

NPI1003378696

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameDR. ADAM JOSEPH MAIERCredential: DO

Location Address8901 WISCONSIN AVEBethesda, MD 20889-0004

Mailing Address8901 Wisconsin AveBethesda, MD 20889-0004 · (301) 295-4000 · Fax (301) 319-2172

Phone(301) 295-4000

Fax(301) 319-2172

Sole ProprietorNo

Enumeration DateApril 2, 2019

Last NPPES UpdateApril 1, 20255 updates tracked since enumeration

NPPES CertifiedApril 1, 2025

✔ NPI 1003378696 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in NE · 2232

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedMilitary Health Care ProviderTaxonomy 171000000X

Also ListedInternal MedicineTaxonomy 207R00000X · License 2232 (NE)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

8901 WISCONSIN AVE, Bethesda, MD 20889

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Secondary Practice Location 1

Location 134800 Bob Wilson DrSan Diego, CA 92134-1098 · Phone (619) 532-6400

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. Adam Joseph Maier Do 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 20889 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 20

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

DR. TAMMERA NELSON

Pharmacist

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4497

DAWOOD TAFTI M.D.

Radiology (Diagnostic Radiology)

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 319-8373

DR. ASHLEY BEE BOZZAY

Student in an Organized Health Care Education/Training Program

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-8588

OANA MARIA POVIAN STROIE MD

General Practice

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4000

SIMAL RUHISHTA ALI DO

General Practice

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4900

DR. JACOB L FRIESEN M.D.

Psychiatry & Neurology (Psychiatry)

8901 WISCONSIN AVE, WRNMMC, NICOE, BUILDING 51
BETHESDA, MD 20889

Montgomery County (301) 319-3772

MS. CARLA PATRICE ALEXIS P.T.

Physical Therapist

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4880

DR. ANN TALBOT SCHWARTZ MD

Pediatrics

8901 WISCONSIN AVE
BETHESDA, MD 20889

Montgomery County (301) 295-4941

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 Adam Maier's NPI number?

The NPI number for Adam Maier is 1003378696. It was assigned to this individual provider in the NPPES registry on April 2, 2019.

Where is Adam Maier located?

Adam Maier practices at 8901 Wisconsin Ave, Bethesda, MD 20889. The listed phone number is (301) 295-4000.

What is Adam Maier's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Adam Maier enrolled in Medicare?

Yes. Adam Maier is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Adam Maier was last updated on April 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.