DR. YI-REN CHEN MD, MPH
NPI 1114284478
Neurological Surgery in Sacramento, CA

Q: What is Yi-ren Chen's NPI number?

The NPI number for Yi-ren Chen is 1114284478. It was assigned to this individual provider in the NPPES registry on April 11, 2012.

Q: What is Yi-ren Chen's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Q: When was this NPI record last updated?

The NPPES record for Yi-ren Chen was last updated on July 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since April 11, 2012PECOS EnrolledAccepts Medicare Assignment

96.5/100

CMS Quality Rating

3939 J ST STE 250, SACRAMENTO, CA 95819(916) 733-3401(916) 733-3410 Get Directions Write a Review

NPPES record last updated: July 25, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 25, 2019, Jul 5, 2017 (2 updates tracked since 2017).

On this page

About Dr. Yi-ren Chen Md, Mph NPPES

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

DR. YI-REN CHEN MD, MPH (NPI 1114284478) is an individual neurological surgery provider in Sacramento, California, licensed in California (A126433) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1114284478

Entity TypeIndividualMale

Primary Taxonomy207T00000X

Provider Legal NameDR. YI-REN CHENCredential: MD, MPH

Location Address3939 J ST STE 250Sacramento, CA 95819-3637

Mailing Address3400 Data DrRancho Cordova, CA 95670-7956

Phone(916) 733-3401

Fax(916) 733-3410

Sole ProprietorYes

Medical School CMSOtherGraduated 2012

Enumeration DateApril 11, 2012

Last NPPES UpdateJuly 25, 20192 updates tracked since enumeration

✔ NPI 1114284478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207T00000X

License✔ Licensed in CA · A126433

Definition

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

3939 J ST STE 250, Sacramento, CA 95819

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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 and accepts Medicare assignment

Dr. Yi-ren Chen Md, Mph 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 ID3375871049

PECOS Enrollment IDI20190820002734

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 Yi-ren Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dignity Health Medical Foundation

Same address

Multi-Specialty

3941 J ST, SUITE 270
Sacramento, CA 95819

Reassigned Medicare billing, California enrollment
1,191 clinicians in this Medicare group

NPI 1861795320 (916) 733-6850

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.

Fusion of additional segment of spine 22614

Fusion of an additional segment of the spine is a surgical procedure to join two or more vertebrae together. This is done to stabilize the spine and reduce pain or correct a deformity. The procedure involves using bone grafts, rods, or screws to secure the spine.

84 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

72 services72 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.

54 services49 patients

Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853

Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.

38 services29 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.

34 services34 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.

33 services32 patients

Fusion of spine in lower back 22612

Fusion of the spine in the lower back, also known as lumbar spinal fusion, is a surgery aimed to join, or fuse, two or more vertebrae in your lower back. This procedure can help alleviate pain and improve stability by reducing movement between the vertebrae.

29 services29 patients

Placement of stabilizing device to back of 1 spine bone in neck 22840

This procedure involves positioning a stabilizing device onto a single spinal bone in the neck. The goal is to provide support and prevent movement that could cause discomfort or further injury. It's performed by trained specialists under anesthesia.

28 services27 patients

Aspiration of bone marrow for spine bone graft 20939

Aspiration of bone marrow for spine bone graft is a procedure where a small amount of bone marrow is extracted, usually from the hip, and then used to help new bone grow in the spine. This can aid in spinal fusion surgeries, enhancing recovery and stability.

27 services27 patients

Placement of stabilizing device to back, 3-6 spine bone segments 22842

This procedure involves placing a device on your back to stabilize 3-6 spine bone segments. It aids in maintaining spine alignment and reducing pain. The device is secured to the bones, providing support and promoting healing.

22 services22 patients

Placement of stabilizing device to front, 2-3 spine bone segments 22845

This procedure involves positioning a stabilizing device on the front of 2-3 segments of your spine. It's designed to provide support and stability to your spine, potentially alleviating discomfort and improving mobility.

21 services21 patients

Fusion of lower spine bone through abdomen with partial removal of disc 22558

This procedure involves merging the bones in your lower spine through an abdominal approach. A portion of the disc, which acts like a cushion between your vertebrae, is partially removed. The goal is to alleviate back pain by limiting movement in the problem area of your spine.

20 services20 patients

Computer-assisted spinal procedure 61783

A computer-assisted spinal procedure is a surgical technique that uses computer technology for improved precision. It involves creating a 3D image of your spine to guide the surgeon during the operation. This method enhances accuracy, reduces risk, and promotes quicker recovery.

20 services20 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

16 services16 patients

Fusion of spine in lower back with partial removal of spine bone and disc 22633

This procedure, called lumbar spinal fusion, involves joining two or more vertebrae in your lower back. It includes a partial removal of a spine bone and disc to alleviate pain and improve stability. The goal is to reduce motion between vertebrae and prevent nerve irritation.

13 services13 patients

Partial removal of spine bone with release of lower spinal cord or nerves 63012

This procedure involves the partial removal of a spine bone to alleviate pressure on the lower spinal cord or nerves. It's aimed at reducing pain and improving mobility. It's a common treatment for conditions like herniated discs or spinal stenosis.

12 services12 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.

12 services12 patients

Treatment of broken or dislocated lower spine bone 22325

The treatment of a broken or dislocated lower spine bone involves realigning the bone and maintaining its position until it heals. This may require surgery, bracing, or a combination of both. Pain management and physiotherapy are also integral parts of recovery.

11 services11 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95819 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

$137.20 typical visit price

range $60.44 – $180.85

Typical copayment $34.30 (range $15.11 – $45.21)

Most-billed visit code 99204

Established Patient

$75.03 typical visit price

range $19.88 – $148.15

Typical copayment $18.75 (range $4.97 – $37.03)

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.

96.5/100

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

Scored through an Alternative Payment Model

Quality

80.34

Promoting Interoperability

100

Improvement Activities

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 Yi-ren Chen's NPI number?

The NPI number for Yi-ren Chen is 1114284478. It was assigned to this individual provider in the NPPES registry on April 11, 2012.

Where is Yi-ren Chen located?

Yi-ren Chen practices at 3939 J St Ste 250, Sacramento, CA 95819. The listed phone number is (916) 733-3401.

What is Yi-ren Chen's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Yi-ren Chen enrolled in Medicare?

Yes. Yi-ren Chen 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 organization bills Medicare for Yi-ren Chen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yi-ren Chen reassigns Medicare benefits to Dignity Health Medical Foundation (Sacramento, 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 Yi-ren Chen'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 Yi-ren Chen was last updated on July 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.