DR. THOMAS MARTIN HEMMEN M.D./PH.D
NPI 1902821945
Psychiatry & Neurology - Vascular Neurology in San Diego, CA

Active since July 12, 2006PECOS EnrolledAccepts Medicare Assignment
200 W ARBOR DR, SAN DIEGO, CA 92103(800) 926-8273(888) 539-8781 Get Directions Write a Review

NPPES record last updated: July 23, 2024. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 23, 2024, Jan 17, 2019 (2 updates tracked since 2019).

About Dr. Thomas Martin Hemmen M.d./ph.d NPPES

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

DR. THOMAS MARTIN HEMMEN M.D./PH.D (NPI 1902821945) is an individual vascular neurology provider in San Diego, California, licensed in California (A72645) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1902821945
Entity TypeIndividualMale
Primary Taxonomy2084V0102X
Provider Legal NameDR. THOMAS MARTIN HEMMENCredential: M.D./PH.D
Location Address200 W ARBOR DRSan Diego, CA 92103-9000
Mailing AddressFile 57326Los Angeles, CA 90074-7326 · (858) 249-6748
Fax(888) 539-8781
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateJuly 12, 2006
Last NPPES UpdateJuly 23, 20242 updates tracked since enumeration
NPPES CertifiedJuly 23, 2024
NPI 1902821945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychiatry & Neurology · Vascular NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084V0102X
License Licensed in CA · A72645
Definition

Vascular Neurology is a subspecialty in the evaluation, prevention, treatment and recovery from vascular diseases of the nervous system. This subspecialty includes the diagnosis and treatment of vascular events of arterial or venous origin from a large number of causes that affect the brain or spinal cord such as ischemic stroke, intracranial hemorrhage, spinal cord ischemia and spinal cord hemorrhage.

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License A72645 (CA)
200 W ARBOR DR, San Diego, CA 92103

Secondary Practice Locations 2

Location 19350 Campus Point DrLA Jolla, CA 92037-1300 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 26655 Alvarado RdSan Diego, CA 92120-5208 · Phone (800) 926-8273 · Fax (888) 539-8781

Other Identifiers 1

Medicaid00A726450CA

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

Dr. Thomas Martin Hemmen M.d./ph.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 ID6002880184
PECOS Enrollment IDI20040824000829
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 6

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
120 services67 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
71 services70 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
19 services19 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
15 services15 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
13 services11 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
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.

Internal Medicine (Nephrology)
200 W ARBOR DR, OWEN CLINIC
SAN DIEGO, CA 92103
Anesthesiology
200 W ARBOR DR
SAN DIEGO, CA 92103
Anesthesiology
200 W ARBOR DR, UCSD MED CENTER
SAN DIEGO, CA 92103
Internal Medicine (Nephrology)
200 W ARBOR DR, UCSD MEDICAL CENTER, SUITE 8781
SAN DIEGO, CA 92103
Emergency Medicine
200 W ARBOR DR
SAN DIEGO, CA 92103
Orthopaedic Surgery
200 W ARBOR DR, ORTHOPAEDIC SURGERY CLINIC, MAIL CODE 8670
SAN DIEGO, CA 92103
Radiology (Diagnostic Radiology)
200 W ARBOR DR, MC 8756
SAN DIEGO, CA 92103
Internal Medicine (Cardiovascular Disease)
200 W ARBOR DR
SAN DIEGO, CA 92103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902821945, enumerated as an "individual" on July 12, 2006.

The provider is located at 200 W ARBOR DR SAN DIEGO, CA 92103 and the phone number is (800) 926-8273.

Psychiatry & Neurology with taxonomy code 2084V0102X and a focus in Vascular Neurology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.