AKSHAI SUBRAMANIAN
NPI 1831551100
Internal Medicine - Cardiovascular Disease in San Francisco, CA

Q: What is Akshai Subramanian's NPI number?

The NPI number for Akshai Subramanian is 1831551100. It was assigned to this individual provider in the NPPES registry on March 24, 2016.

Q: What is Akshai Subramanian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Active since March 24, 2016PECOS EnrolledAccepts Medicare Assignment

85.78/100

CMS Quality Rating

505 PARNASSUS AVE, ROOM 987, SAN FRANCISCO, CA 94143(415) 476-1528 Get Directions Write a Review

NPPES record last updated: July 5, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 5, 2023, Dec 8, 2022, Mar 24, 2016 (3 updates tracked since 2016).

On this page

About Akshai Subramanian NPPES

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

AKSHAI SUBRAMANIAN (NPI 1831551100) is an individual cardiovascular disease provider in San Francisco, California, licensed in Oregon (MD214683) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Legacy Emanuel Medical Center, and is a graduate of University Of California, San Diego School Of Medicine (2016).

NPPES Registry Identity

NPI1831551100

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameAKSHAI SUBRAMANIAN

Location Address505 PARNASSUS AVE, ROOM 987San Francisco, CA 94143-2204

Mailing Address505 Parnassus Ave, Room 987San Francisco, CA 94143-2204 · (415) 476-1528

Phone(415) 476-1528

Sole ProprietorYes

Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2016

Enumeration DateMarch 24, 2016

Last NPPES UpdateJuly 5, 20233 updates tracked since enumeration

NPPES CertifiedJuly 5, 2023

✔ NPI 1831551100 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in OR · MD214683

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

505 PARNASSUS AVE, San Francisco, CA 94143

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Akshai Subramanian 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 ID6608101936

PECOS Enrollment IDI20230717003058, I20230718000942

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 Akshai Subramanian reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Legacy Meridian Park Hospital

526 mi

Hospitalist

19300 SW 65TH AVE
Tualatin, OR 97062

Reassigned Medicare billing, Oregon enrollment
218 clinicians in this Medicare group

NPI 1023305034 (503) 692-1212

Legacy Clinics LLC

527 mi

Rural Health

36860 INDUSTRIAL WAY
Sandy, OR 97055

Reassigned Medicare billing, Oregon enrollment
1,248 clinicians in this Medicare group

NPI 1730472192 (503) 826-0206

Legacy Mount Hood Medical Center

535 mi

General Acute Care Hospital

24800 SE STARK ST
Gresham, OR 97030

Reassigned Medicare billing, Oregon enrollment
132 clinicians in this Medicare group

NPI 1255354700 (503) 674-1122

Legacy Good Samaritan Hospital And Medical Center

536 mi

General Acute Care Hospital

1015 NW 22ND AVE
Portland, OR 97210

Reassigned Medicare billing, Oregon enrollment
387 clinicians in this Medicare group

NPI 1780608216 (503) 413-7711

Legacy Emanuel Hospital & Health Center

536 mi

General Acute Care Hospital

1225 NE 2ND AVE
Portland, OR 97232

Reassigned Medicare billing, Oregon enrollment
719 clinicians in this Medicare group

NPI 1003367491 (503) 944-8000

Legacy Salmon Creek Hospital

549 mi

Clinic/Center

2211 NE 139TH ST
Vancouver, WA 98686

Reassigned Medicare billing, Washington enrollment
754 clinicians in this Medicare group

NPI 1356357784 (360) 487-2878

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 19

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.

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.

339 services288 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

155 services154 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.

116 services55 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.

53 services52 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.

51 services42 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

44 services42 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

42 services40 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

40 services40 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.

35 services15 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

32 services31 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.

21 services19 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

20 services20 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

19 services19 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

18 services18 patients

Ct scan of blood vessels and grafts of heart with contrast 75574

A CT scan of the heart's blood vessels and grafts with contrast is a diagnostic test. A special dye (contrast) is injected into your veins, which helps create clear images of your heart's vessels and grafts. This helps doctors detect blockages or other abnormalities.

16 services16 patients

Ct scan of heart with evaluation of blood vessel calcium 75571

A CT scan of the heart with evaluation of blood vessel calcium is a non-invasive test that uses X-rays to create detailed images of your heart. It helps in detecting and measuring calcium-containing plaque in the arteries, which can indicate heart disease.

13 services13 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

12 services12 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

12 services12 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Legacy Emanuel Medical Center

Acute Care Hospitals · Portland, OR

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380007

Location2801 N Gantenbein AvenuePortland, OR 97227 · Multnomah County

Emergency services Birthing friendly

Legacy Good Samaritan Medical Center

Acute Care Hospitals · Portland, OR

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380017

Location1015 NW 22nd Avenue, W121Portland, OR 97210 · Multnomah County

Emergency services Birthing friendly

Legacy Mount Hood Medical Center

Acute Care Hospitals · Gresham, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380025

Location24800 SE Stark StreetGresham, OR 97030 · Multnomah County

Emergency services Birthing friendly

Legacy Meridian Park Medical Center

Acute Care Hospitals · Tualatin, OR

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380089

Location19300 SW 65th AvenueTualatin, OR 97062 · Washington County

Emergency services Birthing friendly

Legacy Salmon Creek Medical Center

Acute Care Hospitals · Vancouver, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500150

Location2211 NE 139th StreetVancouver, WA 98686 · Clark County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.78/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

96.89

Promoting Interoperability

100

Improvement Activities

Cost

48.45

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.

CATHERINE RAMSDELL NNP

Nurse Practitioner (Neonatal)

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-1000

DR. CLAUDIO ANDRES BRAVO CARRILLO M.D.

Internal Medicine (Advanced Heart Failure and Transplant Cardiology)

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 502-4243

MAURICIO JALIFE BUCAY M.D

Hospitalist

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 750-4994

EMMA B SHAK M.D.

Student in an Organized Health Care Education/Training Program

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-1528

DR. ADRIANA A.T. MARTIN M.D., PH.D.

Internal Medicine

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7288

WILLIAM JAMES DEARDORFF

Internal Medicine (Geriatric Medicine)

505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143

San Francisco County (415) 406-1417

KEERTHANA REDDY BANALA

Student in an Organized Health Care Education/Training Program

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7288

ROBERT CHRISTIAN WENZ

Nurse Anesthetist, Certified Registered

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-8054

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 Akshai Subramanian's NPI number?

The NPI number for Akshai Subramanian is 1831551100. It was assigned to this individual provider in the NPPES registry on March 24, 2016.

Where is Akshai Subramanian located?

Akshai Subramanian practices at 505 Parnassus Ave Room 987, San Francisco, CA 94143. The listed phone number is (415) 476-1528.

What is Akshai Subramanian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Akshai Subramanian enrolled in Medicare?

Yes. Akshai Subramanian 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.

Which organizations bill Medicare for Akshai Subramanian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Akshai Subramanian reassigns Medicare benefits to 6 organizations: Legacy Meridian Park Hospital (Tualatin, OR), Legacy Clinics LLC (Sandy, OR), Legacy Mount Hood Medical Center (Gresham, OR), Legacy Good Samaritan Hospital And Medical Center (Portland, OR), Legacy Emanuel Hospital & Health Center (Portland, OR) and 1 more organization, listed in the Medicare section above. Each 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 Akshai Subramanian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Akshai Subramanian accept?

Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list Akshai Subramanian 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 Akshai Subramanian affiliated with any hospitals?

According to CMS data, Akshai Subramanian is affiliated with Legacy Emanuel Medical Center, Legacy Good Samaritan Medical Center, Legacy Mount Hood Medical Center, Legacy Meridian Park Medical Center and Legacy Salmon Creek Medical Center.

When was this NPI record last updated?

The NPPES record for Akshai Subramanian was last updated on July 5, 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.