SANDRA M. HAYES, MEDICAL SERVICES, INC.
NPI 1073143848
Preventive Medicine - Undersea and Hyperbaric Medicine in San Diego, CA

Q: What is Sandra M. Hayes, Medical Services, Inc.'s specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Undersea and Hyperbaric Medicine, with taxonomy code 2083P0011X.

Active since January 21, 2020

1940 EL CAJON BLVD, SAN DIEGO, CA 92104(619) 543-4500 Get Directions Write a Review

NPPES record last updated: January 21, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Sandra M. Hayes, Medical Services, Inc. NPPES

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

SANDRA M. HAYES, MEDICAL SERVICES, INC. (NPI 1073143848) is a healthcare organization registered as an undersea and hyperbaric medicine in San Diego, California and active in the NPI registry since January 2020. The organization lists Karl F Stemmler, Manager, as its authorized official.

NPPES Registry Identity

NPI1073143848

Entity TypeOrganization

Primary Taxonomy2083P0011X

Legal Business NameSANDRA M. HAYES, MEDICAL SERVICES, INC.

Location Address1940 EL CAJON BLVDSan Diego, CA 92104-1005

Mailing Address446 Palm AveCoronado, CA 92118-1723 · (619) 258-6200 · Fax (619) 258-0028

Phone(619) 543-4500

Organization SubpartNo

Authorized OfficialKarl F StemmlerManager · (619) 258-6200

Enumeration DateJanuary 21, 2020

✔ NPI 1073143848 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Undersea and Hyperbaric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083P0011X

Definition

A specialist who treats decompression illness and diving accident cases and uses hyperbaric oxygen therapy to treat such conditions as carbon monoxide poisoning, gas gangrene, non-healing wounds, tissue damage from radiation and burns and bone infections. This specialist also serves as consultant to other physicians in all aspects of hyperbaric chamber operations and assesses risks and applies appropriate standards to prevent disease and disability in divers and other persons working in altered atmospheric conditions.

1940 EL CAJON BLVD, San Diego, CA 92104

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Other Names 1

Doing Business AsSandra M. Hayes, Medical Services, Inc.

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)

Sandra M. Hayes, Medical Services, 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 Sandra M. Hayes, Medical Services, Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Sandra Hayes, MD

Undersea and Hyperbaric Medicine

NPI 1740431444

200 W ARBOR DR
San Diego, CA 92103

(619) 543-6400

✔ PECOS✔ Accepts Medicare1.3 mi

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 Sandra M. Hayes, Medical Services, Inc.'s NPI number?

The NPI number for Sandra M. Hayes, Medical Services, Inc. is 1073143848. It was assigned to this organization in the NPPES registry on January 21, 2020.

Where is Sandra M. Hayes, Medical Services, Inc. located?

Sandra M. Hayes, Medical Services, Inc. is located at 1940 El Cajon Blvd, San Diego, CA 92104. The listed phone number is (619) 543-4500.

What is Sandra M. Hayes, Medical Services, Inc.'s specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Undersea and Hyperbaric Medicine, with taxonomy code 2083P0011X.

Is Sandra M. Hayes, Medical Services, Inc. enrolled in Medicare?

Yes. Sandra M. Hayes, Medical Services, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sandra M. Hayes, Medical Services, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Undersea and Hyperbaric Medicine) reassigns their Medicare billing to Sandra M. Hayes, Medical Services, 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 Sandra M. Hayes, Medical Services, Inc. was last updated on January 21, 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.