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BENJAMIN H. MAECK, III, M.D. INC.
NPI 1568595239
Internal Medicine in San Francisco, CA

Active since March 13, 2007
2250 HAYES ST, SUITE 205, SAN FRANCISCO, CA 94117(415) 750-5730(415) 750-4973 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Benjamin H. Maeck, Iii, M.d. Inc. NPPES

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

BENJAMIN H. MAECK, III, M.D. INC. (NPI 1568595239) is a healthcare organization registered as an internal medicine in San Francisco, California and active in the NPI registry since March 2007. The organization lists Benjamin H Maeck, Physician Owner, as its authorized official.

NPPES Registry Identity

NPI1568595239
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameBENJAMIN H. MAECK, III, M.D. INC.
Location Address2250 HAYES ST, SUITE 205San Francisco, CA 94117-1078
Mailing Address2250 Hayes St, Suite 205San Francisco, CA 94117-1078 · (415) 750-5730 · Fax (415) 750-4973
Phone(415) 750-5730
Fax(415) 750-4973
Organization SubpartNo
Authorized OfficialBenjamin H MaeckPhysician Owner · (415) 750-5730
Enumeration DateMarch 13, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1568595239 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A71812
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.
2250 HAYES ST, San Francisco, CA 94117
Open in Google Maps ↗

Other Identifiers 1

Other1487720454CA · Individual Npi Number

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Benjamin H. Maeck, Iii, M.d. Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Benjamin H. Maeck, III, M.D. Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Benjamin Maeck, MD
Internal Medicine
NPI 1487720454
2250 HAYES STREET #205
San Francisco, CA 94117
(415) 750-5730
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Benjamin H. Maeck, III, M.D. Inc.'s NPI number?

The NPI number for Benjamin H. Maeck, III, M.D. Inc. is 1568595239. It was assigned to this organization in the NPPES registry on March 13, 2007.

Where is Benjamin H. Maeck, III, M.D. Inc. located?

Benjamin H. Maeck, III, M.D. Inc. is located at 2250 Hayes St Suite 205, San Francisco, CA 94117. The listed phone number is (415) 750-5730.

What is Benjamin H. Maeck, III, M.D. Inc.'s specialty?

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

Is Benjamin H. Maeck, III, M.D. Inc. enrolled in Medicare?

Yes. Benjamin H. Maeck, III, M.D. Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Benjamin H. Maeck, III, M.D. Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Benjamin H. Maeck, III, M.D. Inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Benjamin H. Maeck, III, M.D. Inc. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.