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DR. RAN S KIM M.D.
NPI 1437237005
Colon & Rectal Surgery in Walnut Creek, CA

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
90.61/100
CMS Quality Rating
1399 YGNACIO VALLEY RD STE 11D, WALNUT CREEK, CA 94598(925) 430-5613(510) 340-5462 Get Directions Write a Review

NPPES record last updated: April 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Ran S Kim M.d. NPPES

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

DR. RAN S KIM M.D. (NPI 1437237005) is an individual colon & rectal surgery provider in Walnut Creek, California, licensed in California (G75587) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Pennsylvania (1990).

NPPES Registry Identity

NPI1437237005
Entity TypeIndividualMale
Primary Taxonomy208C00000X
Provider Legal NameDR. RAN S KIMCredential: M.D.
Location Address1399 YGNACIO VALLEY RD STE 11DWalnut Creek, CA 94598-2874
Mailing Address1399 Ygnacio Valley Rd Ste 11dWalnut Creek, CA 94598-2874 · (925) 430-5613 · Fax (510) 340-5462
Phone(925) 430-5613
Fax(510) 340-5462
Sole ProprietorNo
Medical School CMSMedical College Of PennsylvaniaGraduated 1990
Enumeration DateNovember 1, 2006
Last NPPES UpdateApril 22, 2025
NPPES CertifiedApril 22, 2025
✔ NPI 1437237005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208C00000X
License✔ Licensed in CA · G75587
Definition
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.
Also ListedSurgeryTaxonomy 208600000X · License G75587 (CA)
1399 YGNACIO VALLEY RD STE 11D, Walnut Creek, CA 94598
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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. Ran S Kim 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 ID5890871941
PECOS Enrollment IDI20090217000291
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

5

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

U Wellness Wound Care Apc
Same address
Surgery
1399 YGNACIO VALLEY RD STE 11D
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
NPI 1538966643 (925) 357-9033
John Muir Trauma Physicians Billing Service
0.3 mi
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
Bass Medical Group
1.5 mi
Orthopaedic Surgery
390 N WIGET LN STE 100
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
  • 347 clinicians in this Medicare group
NPI 1043616600 (925) 944-0110
Sun Healthcare And Surgery Group Inc
14 mi
Podiatrist
3700 SUNSET LN STE 1
Antioch, CA 94509
  • Reassigned Medicare billing, California enrollment
  • 13 clinicians in this Medicare group
NPI 1609328129 (925) 979-8313
Health Connect Wound Solutions Professional Corporation
27 mi
Geriatric Medicine
433 AIRPORT BLVD STE 100
Burlingame, CA 94010
  • Reassigned Medicare billing, California enrollment
  • 4 clinicians in this Medicare group
NPI 1720962699 (650) 740-3442

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 11

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.

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.
334 services171 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307
A follow-up nursing facility visit per day typically lasts about 10 minutes. This service involves a healthcare professional checking on your health status, answering any questions you may have, and monitoring your progress. This routine check ensures your recovery is on track and any concerns are addressed promptly.
100 services19 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
94 services22 patients
Injection of hemorrhoid 46500
An injection for hemorrhoids involves administering a substance into the swollen tissue to reduce its size. It's a simple, quick procedure, performed in a doctor's office, to help alleviate discomfort and inflammation.
80 services27 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.
75 services75 patients
Diagnostic exam of anus using an endoscope 46600
This procedure involves using a thin, flexible instrument called an endoscope to examine the anal area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.
69 services61 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 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
$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.

90.61/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality83.87
Promoting Interoperability100
Improvement Activities40
Cost84.82

Reported Quality Measures

Appropriate Use of DXA Scans in Women Under 65 Years Who Do Not Meet the Risk Factor Profile for Osteoporotic Fracture
Lower rates are better for this measure.
7%45 patients
Breast Cancer Screening
73%171 patients4/55-star benchmark: 93%
Cervical Cancer Screening
44%142 patients2/55-star benchmark: 98%
Colorectal Cancer Screening
71%420 patients4/55-star benchmark: 88%
Controlling High Blood Pressure
66%190 patients3/55-star benchmark: 91%
Diabetes: Eye Exam
14%59 patients1/55-star benchmark: 100%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
32%59 patients4/55-star benchmark: 91%
Documentation of Current Medications in the Medical Record
95%1,530 patients4/55-star benchmark: 100%
e-Prescribing
98%191 patients4/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
35%368 patients2/55-star benchmark: 100%
HIV Screening
26%425 patients2/55-star benchmark: 60%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
44%759 patients2/55-star benchmark: 98%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
28%585 patients2/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 93% · 453 patients
Patients screened: 99% · 453 patients
21%34 patients1/55-star benchmark: 100%
Provide Patients Electronic Access to Their Health Information
100%243 patients5/55-star benchmark: 100%
Statin Therapy for the Prevention and Treatment of Cardiovascular Disease
83%223 patients4/55-star benchmark: 91%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385
DME-Orthotic Devices · category DF010N
3 suppliers11 claims440 services$4.57 avg. paid by Medicare
Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce A4394
DME-Orthotic Devices · category DF010N
4 suppliers28 claims590 services$2.40 avg. paid by Medicare
Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409
DME-Orthotic Devices · category DF010N
2 suppliers18 claims310 services$6.00 avg. paid by Medicare
Ostomy pouch, drainable; for use on barrier with non-locking flange, with filter (2 piece system), each A4425
DME-Orthotic Devices · category DF010N
2 suppliers11 claims340 services$3.46 avg. paid by Medicare
Adhesive remover or solvent (for tape, cement or other adhesive), per ounce A4455
DME-Medical/Surgical Supplies · category DA000N
2 suppliers15 claims61 services$1.24 avg. paid by Medicare
Adhesive remover, wipes, any type, each A4456
DME-Medical/Surgical Supplies · category DA000N
4 suppliers28 claims1,685 services$0.22 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

U WELLNESS WOUND CARE APC
Surgery
1399 YGNACIO VALLEY RD STE 11D
WALNUT CREEK, CA 94598
Contra Costa County (925) 357-9033
EILEEN HAHN PHYSICIAN ASSISTANT
Physician Assistant
1399 YGNACIO VALLEY RD STE 11D
WALNUT CREEK, CA 94598
Contra Costa County (925) 357-9033
RAN S. KIM, MD, INC
Surgery
1399 YGNACIO VALLEY RD STE 11D
WALNUT CREEK, CA 94598
Contra Costa County (925) 430-5613
ANDES MEDICAL CARE APC
Surgery
1399 YGNACIO VALLEY RD STE 11D
WALNUT CREEK, CA 94598
Contra Costa County (925) 357-9033

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 Ran Kim's NPI number?

The NPI number for Ran Kim is 1437237005. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Ran Kim located?

Ran Kim practices at 1399 Ygnacio Valley Rd Ste 11D, Walnut Creek, CA 94598. The listed phone number is (925) 430-5613.

What is Ran Kim's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Is Ran Kim enrolled in Medicare?

Yes. Ran Kim 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 Ran Kim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ran Kim reassigns Medicare benefits to 5 organizations: U Wellness Wound Care Apc (Walnut Creek, CA), John Muir Trauma Physicians Billing Service (Walnut Creek, CA), Bass Medical Group (Walnut Creek, CA), Sun Healthcare And Surgery Group Inc (Antioch, CA) and Health Connect Wound Solutions Professional Corporation (Burlingame, CA). 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 Ran Kim'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 Ran Kim was last updated on April 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.