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SEAMUS DAVID LONERGAN M.D.
NPI 1407953391
Emergency Medicine in San Francisco, CA

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment
3360 OCTAVIA ST APT 6, SAN FRANCISCO, CA 94123(415) 775-9619(415) 775-9619 Get Directions Write a Review

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

About Seamus David Lonergan M.d. NPPES

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

SEAMUS DAVID LONERGAN M.D. (NPI 1407953391) is an individual emergency medicine provider in San Francisco, California, licensed in California (A90573) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Francis Hospital Muskogee, and is a graduate of University Of California, San Francisco School Of Medicine (2003).

NPPES Registry Identity

NPI1407953391
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameSEAMUS DAVID LONERGANCredential: M.D.
Location Address3360 OCTAVIA ST APT 6San Francisco, CA 94123-2224
Mailing Address3360 Octavia St, Apt 6San Francisco, CA 94123-2224 · (415) 775-9619
Phone(415) 775-9619
Fax(415) 775-9619
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2003
Enumeration DateSeptember 20, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1407953391 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 · A90573
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.
3360 OCTAVIA ST APT 6, San Francisco, CA 94123
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Seamus David Lonergan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416956826
PECOS Enrollment IDI20260412000032
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.

Areas of Expertise CMS Part B claims 5

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.
311 services304 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.
273 services253 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
100 services99 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.
71 services70 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
12 services12 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Francis Hospital Muskogee

Acute Care Hospitals · Muskogee, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370025
Location300 Rockefeller DriveMuskogee, OK 74401 · Muskogee County
Emergency services Birthing friendly

Saint Francis Hospital South, LLC

Acute Care Hospitals · Tulsa, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370218
Location10501 East 91st Street SouthTulsa, OK 74133 · Tulsa County
Emergency services Birthing friendly

Baylor Scott & White Medical Center At Irving

Acute Care Hospitals · Irving, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450079
Location1901 N Macarthur BlvdIrving, TX 75061 · Dallas County
Emergency services Birthing friendly

Baylor Scott & White Medical Center Grapevine

Acute Care Hospitals · Grapevine, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450563
Location1650 W College StGrapevine, TX 76051 · Tarrant County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94123 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

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 Seamus Lonergan's NPI number?

The NPI number for Seamus Lonergan is 1407953391. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Seamus Lonergan located?

Seamus Lonergan practices at 3360 Octavia St Apt 6, San Francisco, CA 94123. The listed phone number is (415) 775-9619.

What is Seamus Lonergan's specialty?

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

Is Seamus Lonergan enrolled in Medicare?

Yes. Seamus Lonergan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Seamus Lonergan accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Seamus Lonergan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Seamus Lonergan affiliated with any hospitals?

According to CMS data, Seamus Lonergan is affiliated with Saint Francis Hospital Muskogee, Saint Francis Hospital South, LLC, Baylor Scott & White Medical Center At Irving and Baylor Scott & White Medical Center Grapevine.

When was this NPI record last updated?

The NPPES record for Seamus Lonergan 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.