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DR. CALVIN C. LY DO
NPI 1376761767
Emergency Medicine in Hercules, CA

Active since April 23, 2007PECOS EnrolledAccepts Medicare Assignment
10.92/100
CMS Quality Rating
600 ALFRED NOBEL DR STE A, HERCULES, CA 94547(510) 984-1103 Get Directions Write a Review

NPPES record last updated: June 25, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Calvin C. Ly Do NPPES

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

DR. CALVIN C. LY DO (NPI 1376761767) is an individual emergency medicine provider in Hercules, California, licensed in California (20A 10209) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (2005).

NPPES Registry Identity

NPI1376761767
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. CALVIN C. LYCredential: DO
Location Address600 ALFRED NOBEL DR STE AHercules, CA 94547-1834
Mailing Address250 Point Lobos Ave Apt 603San Francisco, CA 94121-1402 · (714) 883-8261
Phone(510) 984-1103
Sole ProprietorNo
Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2005
Enumeration DateApril 23, 2007
Last NPPES UpdateJune 25, 2021
NPPES CertifiedJune 25, 2021
✔ NPI 1376761767 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in CA · 20A 10209✔ Licensed in OH · 58001776
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
600 ALFRED NOBEL DR STE A, Hercules, CA 94547
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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. Calvin C. Ly Do 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 ID7517025562
PECOS Enrollment IDI20081021000376
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

2

Medicare enrollment records show Calvin Ly reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Snf Specialists Medical Corporation
21 mi
Internal Medicine
1255 TRAVIS BLVD
Fairfield, CA 94533
  • Reassigned Medicare billing, California enrollment
  • 51 clinicians in this Medicare group
NPI 1497265565 (707) 864-1056
Cep America - California
199 mi
Emergency Medicine
345 HALYCON ROAD
Arroyo Grande, CA 93420
  • Reassigned Medicare billing, California enrollment
  • 1,204 clinicians in this Medicare group
NPI 1548216260 (805) 489-4261

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 7

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.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
3,288 services348 patients
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457
This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.
322 services81 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.
230 services45 patients
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458
This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.
210 services38 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
134 services131 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
97 services95 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94547 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
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

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.

10.92/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Promoting Interoperability0
Improvement Activities0
Cost36.4

Referred Medical Equipment & Supplies CMS DME claims 4

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

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier12 claims12 services$40.91 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), without side rails, without mattress E0295
DME-Hospital Beds · category DB000N
2 suppliers17 claims17 services$47.68 avg. paid by Medicare
Patient lift, electric with seat or sling E0635
DME-Other DME · category DE000N
2 suppliers19 claims19 services$81.33 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier43 claims43 services$17.40 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.

AMY LYNN CHOY
Physician Assistant
600 ALFRED NOBEL DR STE A
HERCULES, CA 94547
Contra Costa County (510) 984-1111
DR. OGOCHUKWU RAPHAELA NWOSU DNP, FNP-BC,PMHNP-BC
Nurse Practitioner (Family)
600 ALFRED NOBEL DR STE A
HERCULES, CA 94547
Contra Costa County (510) 984-1103
DANIEL W TSEGAY DNP, FNP-BC
Nurse Practitioner (Family)
600 ALFRED NOBEL DR STE A
HERCULES, CA 94547
Contra Costa County (510) 984-1103
LEOCARLO DE CASTRO
Nurse Practitioner
600 ALFRED NOBEL DR STE A
HERCULES, CA 94547
Contra Costa County (510) 984-1103

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 Calvin Ly's NPI number?

The NPI number for Calvin Ly is 1376761767. It was assigned to this individual provider in the NPPES registry on April 23, 2007.

Where is Calvin Ly located?

Calvin Ly practices at 600 Alfred Nobel Dr Ste A, Hercules, CA 94547. The listed phone number is (510) 984-1103.

What is Calvin Ly's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Calvin Ly enrolled in Medicare?

Yes. Calvin Ly 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 Calvin Ly's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Calvin Ly reassigns Medicare benefits to 2 organizations: Snf Specialists Medical Corporation (Fairfield, CA) and Cep America - California (Arroyo Grande, 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 Calvin Ly'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 Calvin Ly was last updated on June 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.