Active NPI 1275648610 Individual Practitioner Male Practitioner

Dr. Roy S Antelyes , MD

Emergency Medicine • Pasadena, CA

Public Directory Information & Medical Disclaimer

This profile is compiled from official public domain records provided by CMS and the NPPES registry. TRUE-MEDINFO is an independent reference directory and does not provide medical advice, diagnosis, or treatment recommendations. Always consult a licensed medical professional for personal health decisions.

Professional Overview & Biography Verified Profile Summary

Dr. Roy Antelyes, MD is a registered healthcare professional specializing in Emergency Medicine in Pasadena, CA. Official NPI practice address is registered at 100 W CALIFORNIA BLVD.

Frequently performed procedures and clinical services include emergency department visit for life threatening or functioning severity, emergency department visit with moderate level of medical decision making, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

100 W California Blvd

Pasadena, CA 911053010

Telephone 6263973445

Fax 6263975643

Associated Practice Facility / Clinic

🏢 The Hill Medical Corporation Facility NPI 1154310415

Specialty Benchmarks & Practice Insights

Comparative analytics for Emergency Medicine in Pasadena, CA

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 23.7 Yrs

State Avg: 22.9 Yrs

Regional Practice Density

52 Specialists

Practicing in Pasadena, CA (7995 Statewide)

Telehealth Adoption Rate

1.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

85.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	108	105	$1199.00	$176.03
99284 Emergency department visit with moderate level of medical decision making	43	43	$752.00	$121.46
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	16	16	$81.00	$8.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	150	148	$1199.00	$180.67
99284 Emergency department visit with moderate level of medical decision making	108	106	$752.00	$124.62
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	97	92	$81.00	$8.54
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	45	45	$1219.00	$182.35
99283 Emergency department visit with low level of medical decision making	19	19	$446.00	$73.99
93042 Interpretation and report of electrical activity of heart using 1-3 leads	11	11	$60.00	$7.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	158	155	$1199.00	$185.78
99284 Emergency department visit with moderate level of medical decision making	80	79	$752.00	$128.15
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	70	68	$81.00	$8.85
99283 Emergency department visit with low level of medical decision making	38	37	$446.00	$75.89
99220 Hospital observation care, typically 70 minutes	25	25	$675.00	$189.97
99291 Critical care, first 30-74 minutes	20	20	$1529.00	$230.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	187	185	$1199.00	$188.90
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	68	68	$81.00	$9.03
99284 Emergency department visit with moderate level of medical decision making	67	67	$752.00	$129.21
99220 Hospital observation care, typically 70 minutes	32	31	$675.00	$196.33
99283 Emergency department visit with low level of medical decision making	32	28	$446.00	$77.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	106	104	$1199.00	$183.59
99284 Emergency department visit with moderate level of medical decision making	100	98	$752.00	$125.24
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	77	76	$81.00	$9.07
99283 Emergency department visit with low level of medical decision making	40	38	$446.00	$67.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	124	123	$1199.00	$180.66
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	117	114	$81.00	$9.05
99284 Emergency department visit with moderate level of medical decision making	69	69	$752.00	$122.85
99283 Emergency department visit with low level of medical decision making	32	26	$446.00	$64.83
99291 Critical care, first 30-74 minutes	22	22	$1529.00	$234.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	148	143	$79.22	$9.94
99285 Emergency department visit for life threatening or functioning severity	134	132	$805.69	$198.02
99284 Emergency department visit with moderate level of medical decision making	74	74	$530.08	$134.98
99291 Critical care, first 30-74 minutes	29	28	$969.52	$253.31
99283 Emergency department visit with low level of medical decision making	17	17	$350.94	$68.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	155	152	$751.95	$181.56
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	115	115	$77.73	$9.04
99284 Emergency department visit with moderate level of medical decision making	58	58	$504.17	$123.22
99283 Emergency department visit with low level of medical decision making	17	16	$337.94	$64.97
99291 Critical care, first 30-74 minutes	16	16	$865.38	$236.52

Medical Specialties & State Licenses

Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

State License CA G37727

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

00G377270 (CA)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

20 Associated Practitioners

Dr. Ridgely Muller , MD

Emergency Medicine

NPI 1003920497

Doctor of Medicine (M.D.)

Dr. Paul Rhee , MD

Emergency Medicine

NPI 1063526747

Doctor of Medicine (M.D.)

Dr. Asbasia Mikhail , MD

Emergency Medicine

NPI 1114031515

Doctor of Medicine (M.D.)

Sierra Snyder , PA

Physician Assistant

NPI 1144335050

Physician Assistant

Dr. Roger Yang , MD

Emergency Medicine

NPI 1295849883

Doctor of Medicine (M.D.)

Dr. Douglas Willard , MD

Emergency Medicine

NPI 1366559874

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active June 27, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location June 27, 2008

Registered at 100 W CALIFORNIA BLVD, PASADENA, CA 911053010 (Tel: 6263973445)

📍

Updated Business Mailing Address June 27, 2008

Registered at PO BOX 60259, LOS ANGELES, CA 900600259 (Tel: 6264470296)

👤

Provider Name / Credentials Updated June 27, 2008

Recorded as ROY ANTELYES, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 27, 2008

Emergency Medicine (License #G37727 in CA)

🟢

Initial NPI Registration & Enumeration August 19, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Roy Antelyes. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1275648610

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: August 19, 2006

Last Update: June 27, 2008

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

Po Box 60259

Los Angeles, CA 900600259

Phone: 6264470296

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.