DR. COURTNEY EMI TAKAHASHI M.D.
NPI 1649414681
Psychiatry & Neurology - Neurocritical Care in Walnut Creek, CA

Q: What is Courtney Takahashi's NPI number?

The NPI number for Courtney Takahashi is 1649414681. It was assigned to this individual provider in the NPPES registry on April 21, 2009.

Q: What is Courtney Takahashi's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.

Active since April 21, 2009PECOS Enrolled

1601 YGNACIO VALLEY RD, WALNUT CREEK, CA 94598(808) 203-8671 Get Directions Write a Review

NPPES record last updated: October 24, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 24, 2023, Jun 9, 2023, Feb 7, 2022 (3 updates tracked since 2022).

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About Dr. Courtney Emi Takahashi M.d. NPPES

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

DR. COURTNEY EMI TAKAHASHI M.D. (NPI 1649414681) is an individual neurocritical care provider in Walnut Creek, California, licensed in Massachusetts (263754) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1649414681

Entity TypeIndividualFemale

Primary Taxonomy2084A2900X

Provider Legal NameDR. COURTNEY EMI TAKAHASHICredential: M.D.

Location Address1601 YGNACIO VALLEY RDWalnut Creek, CA 94598-3122

Mailing Address3066 Deer Meadow DrDanville, CA 94506-2135

Phone(808) 203-8671

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateApril 21, 2009

Last NPPES UpdateOctober 24, 20233 updates tracked since enumeration

NPPES CertifiedOctober 23, 2023

✔ NPI 1649414681 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Neurocritical CareAllopathic & Osteopathic Physicians

Taxonomy Code2084A2900X

License✔ Licensed in MA · 263754

Definition

The medical subspecialty of Neurocritical Care is devoted to the comprehensive, multisystem care of the critically-ill neurological patient. Like other intensivists, the neurointensivist generally assumes the primary role for coordinating the care of his or her patients in the ICU, both the neurological and medical management of the patient. They may also provide consultative services for these patients as requested within the health system.

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 263754 (MA)

1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598

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Other Identifiers 2

Medicaid110104614AMA

Medicaid3108980NH

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Courtney Emi Takahashi M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375798184

PECOS Enrollment IDI20230821002611

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 Reassignments

Medicare enrollment records show Courtney Takahashi reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

John Muir Trauma Physicians Billing Service

Same address

Hospitalist

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
810 clinicians in this Medicare group

NPI 1093864837 (925) 947-5331

Moussa F Yazbeck MD Inc

0.6 mi

Personal Emergency Response Attendant

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
8 clinicians in this Medicare group

NPI 1013313071 (479) 806-5319

Bay Area Neurointensivists Inc

1.2 mi

Critical Care Medicine

323 LENNON LN
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
21 clinicians in this Medicare group

NPI 1972149748 (925) 437-8841

Contra Costa County

4.0 mi

Adult Mental Health

1420 WILLOW PASS RD
Concord, CA 94520

Reassigned Medicare billing, California enrollment
530 clinicians in this Medicare group

NPI 1023188489 (925) 646-5480

Steward Medical Group, Inc

2,670 mi

Specialist

9 GALEN ST
Watertown, MA 02472

Reassigned Medicare billing, Massachusetts enrollment
1,103 clinicians in this Medicare group

NPI 1629398219 (615) 467-4474

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 6

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.

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.

347 services133 patients

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.

328 services170 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

90 services41 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.

49 services48 patients

Measurement of brain wave activity (eeg), awake and drowsy 95816

Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.

19 services19 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

19 services19 patients

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.

MALCOLM C JOHNSON MD

Emergency Medicine