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THOMAS ALLEN M.D.
NPI 1144607888
Emergency Medicine in Oceanside, CA

Active since May 01, 2015PECOS Enrolled
200 MERCY CIRCLE, OCEANSIDE, CA 92055(760) 719-3365 Get Directions Write a Review

NPPES record last updated: January 4, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Thomas Allen M.d. NPPES

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

THOMAS ALLEN M.D. (NPI 1144607888) is an individual emergency medicine provider in Oceanside, California, licensed in California (161260) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144607888
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameTHOMAS ALLENCredential: M.D.
Location Address200 MERCY CIRCLEOceanside, CA 92055
Mailing Address292 Chinquapin Ave Unit BCarlsbad, CA 92008-7460 · (760) 985-4042
Phone(760) 719-3365
Sole ProprietorNo
Enumeration DateMay 1, 2015
Last NPPES UpdateJanuary 4, 2023
NPPES CertifiedJanuary 3, 2023
✔ NPI 1144607888 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · 161260
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
200 MERCY CIRCLE, Oceanside, CA 92055
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Thomas Allen 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.

Medicare Billing Reassignment

Medicare enrollment records show Thomas Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Palomar Emergency Physicians, Inc
17 mi
Emergency Medicine
2185 CITRACADO PKWY
Escondido, CA 92029
  • Reassigned Medicare billing, California enrollment
  • 135 clinicians in this Medicare group
NPI 1124698139 (310) 321-0143

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
50 services49 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
25 services25 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92055 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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.

MARIA J HERRERA PH.D.
Psychologist (Clinical)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (510) 542-0859
SHERRI MARTINEZ LMFT, ADCII
Counselor (Addiction (Substance Use Disorder))
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 725-0063
DR. ASHLEY BITTLE LCSW, PSY.D.
Psychologist (Clinical)
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-3322
CAROLYN STEINLAGE DPT
Physical Therapist
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-3791
DR. SPIROS KULUBIS MD
Anesthesiology
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (760) 719-3361
SHANE MCGUIRE FMF RECON IDC
Military Health Care Provider (Independent Duty Corpsman)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (760) 725-8912
MELINDA WEE FAH MARTINEZ PA
Physician Assistant
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-4550
ELLA HAHN SCHULTZ DO
Student in an Organized Health Care Education/Training Program
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 725-1288

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 Thomas Allen's NPI number?

The NPI number for Thomas Allen is 1144607888. It was assigned to this individual provider in the NPPES registry on May 1, 2015.

Where is Thomas Allen located?

Thomas Allen practices at 200 Mercy Circle, Oceanside, CA 92055. The listed phone number is (760) 719-3365.

What is Thomas Allen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Thomas Allen enrolled in Medicare?

Yes. Thomas Allen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Thomas Allen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Allen reassigns Medicare benefits to Palomar Emergency Physicians, Inc (Escondido, CA). The 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 Thomas Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thomas Allen was last updated on January 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.