DR. GREGORY SCOTT SIMMONS M.D.
NPI 1205154887
Emergency Medicine in Santa Maria, CA

Q: What is Gregory Simmons's NPI number?

The NPI number for Gregory Simmons is 1205154887. It was assigned to this individual provider in the NPPES registry on May 6, 2010.

Q: What is Gregory Simmons's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Gregory Simmons was last updated on September 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 May 06, 2010PECOS Enrolled

94.62/100

CMS Quality Rating

1400 E CHURCH ST, SANTA MARIA, CA 93454(805) 739-3114 Get Directions Write a Review

NPPES record last updated: September 1, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Gregory Scott Simmons M.d. NPPES

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

DR. GREGORY SCOTT SIMMONS M.D. (NPI 1205154887) is an individual emergency medicine provider in Santa Maria, California, licensed in California (A111508) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1205154887

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. GREGORY SCOTT SIMMONSCredential: M.D.

Location Address1400 E CHURCH STSanta Maria, CA 93454-5906

Mailing Address1809 Cliff Dr Ste ASanta Barbara, CA 93109-1649 · (718) 509-5367

Phone(805) 739-3114

Sole ProprietorYes

Enumeration DateMay 6, 2010

Last NPPES UpdateSeptember 1, 2010

✔ NPI 1205154887 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in CA · A111508

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.

1400 E CHURCH ST, Santa Maria, CA 93454

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory Scott Simmons M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Gregory Simmons reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cep America - California

Same address

Emergency Medicine

1400 E CHURCH ST
Santa Maria, CA 93454

Reassigned Medicare billing, California enrollment
1,204 clinicians in this Medicare group

NPI 1962030205 (805) 739-3000

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 4

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

253 services247 patients

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.

229 services198 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

64 services62 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.

37 services37 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93454 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

$94.71 typical visit price

range $62.01 – $184.40

Typical copayment $23.67 (range $15.50 – $46.10)

Most-billed visit code 99203

Established Patient

$108.26 typical visit price

range $20.60 – $151.20

Typical copayment $27.06 (range $5.15 – $37.80)

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.

94.62/100

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

Scored as part of a group practice

Quality

76.67

Improvement Activities

Cost

97.14

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.

MR. JORDAN RYAN WILLIAMS PA-C

Physician Assistant

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (805) 739-3000

KATELYN YARNOLD LCSW

Social Worker

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (805) 739-3000

KENTON JONES DO, MS

Student in an Organized Health Care Education/Training Program

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (805) 739-3000

ERICA CHENG LIU PA-C

Physician Assistant

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (855) 980-3683

DR. JAMES W JONES M.D.

Internal Medicine (Nephrology)

1400 E CHURCH ST, BUILDING 8
SANTA MARIA, CA 93454

Santa Barbara County (805) 739-3561

DR. YOSEF DIAB MD

Internal Medicine

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (805) 475-3640

DR. DAVID ALOYSIUS KETELAAR M.D.

Emergency Medicine

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (805) 739-3200

DR. DEBRA LYNN WEINSTEIN M.D.

Emergency Medicine

1400 E CHURCH ST
SANTA MARIA, CA 93454

Santa Barbara County (805) 739-3200

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 Gregory Simmons's NPI number?

The NPI number for Gregory Simmons is 1205154887. It was assigned to this individual provider in the NPPES registry on May 6, 2010.

Where is Gregory Simmons located?

Gregory Simmons practices at 1400 E Church St, Santa Maria, CA 93454. The listed phone number is (805) 739-3114.

What is Gregory Simmons's specialty?

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

Is Gregory Simmons enrolled in Medicare?

Yes. Gregory Simmons is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Simmons's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Simmons reassigns Medicare benefits to Cep America - California (Santa Maria, 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 Gregory Simmons'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 Gregory Simmons was last updated on September 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.