Active NPI 1467612580 Individual Practitioner Male Practitioner

Dr. Robert James Katzer , MD

Emergency Medicine • Orange, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Robert Katzer, MD is a certified Emergency Medicine practicing in Orange, CA. With approximately 18 years of clinical experience since graduating from Temple University School Of Medicine in 2008, Dr. Katzer delivers high-quality medical care to the local community at 101 THE CITY DR S BLDG 1A.

Dr. Katzer is affiliated with Regents Of The University Of and accepts Medicare assignment.

Frequently performed procedures and clinical services include emergency department visit for life threatening or functioning severity, new patient outpatient office visit, emergency department visit with moderate level of medical decision making. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

101 The City Dr S Bldg 1a

Orange, CA 928683201

Telephone 5109106981

Medicare Profile & Education

Medical School

Temple University School Of Medicine

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Emergency Medicine in Orange, CA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs +4.8 yrs vs City Avg

City Avg: 13.2 Yrs

State Avg: 22.9 Yrs

Regional Practice Density

180 Specialists

Practicing in Orange, CA (7995 Statewide)

Telehealth Adoption Rate

0.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

75.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Katzer (18 Years) 18 Yrs

Orange Specialty Average (13.2 Years) 13.2 Yrs

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	130	127	$754.00	$175.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	70	70	$410.00	$120.53
99284 Emergency department visit with moderate level of medical decision making	61	60	$518.00	$120.43
99291 Critical care, first 30-74 minutes	51	51	$963.00	$216.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	39	$430.00	$132.99
99213 Established patient office or other outpatient visit, typically 15 minutes	40	39	$291.00	$98.65
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$739.00	$179.48
76705 Limited ultrasound scan of abdomen	22	22	$129.00	$28.53
93308 Ultrasound of heart, follow-up	20	20	$118.00	$25.52
76604 Ultrasound scan of chest	20	20	$126.00	$26.36
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$882.00	$178.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	175	173	$754.00	$184.10
99284 Emergency department visit with moderate level of medical decision making	118	117	$518.00	$126.82
99291 Critical care, first 30-74 minutes	47	47	$963.00	$226.01
93042 Interpretation and report of electrical activity of heart using 1-3 leads	32	32	$31.00	$7.17
76705 Limited ultrasound scan of abdomen	30	30	$129.00	$30.38
93308 Ultrasound of heart, follow-up	29	29	$118.00	$26.56
76604 Ultrasound scan of chest	27	27	$126.00	$28.09
99283 Emergency department visit with low level of medical decision making	20	20	$305.00	$75.30
99238 Hospital discharge day management, 30 minutes or less	14	14	$341.71	$87.34
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$882.00	$185.79

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	206	202	$754.00	$184.99
93042 Interpretation and report of electrical activity of heart using 1-3 leads	101	97	$31.00	$7.27
99284 Emergency department visit with moderate level of medical decision making	93	91	$518.00	$127.43
99291 Critical care, first 30-74 minutes	57	57	$963.00	$229.61
93308 Ultrasound of heart, follow-up	35	35	$118.00	$26.86
76604 Ultrasound scan of chest	33	33	$126.00	$28.49
76705 Limited ultrasound scan of abdomen	32	32	$129.00	$30.75
99217 Hospital observation care on day of discharge	22	22	$320.00	$76.65
99283 Emergency department visit with low level of medical decision making	21	21	$305.00	$75.61
99220 Hospital observation care, typically 70 minutes	16	16	$809.00	$189.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	155	154	$742.37	$189.89
93042 Interpretation and report of electrical activity of heart using 1-3 leads	91	89	$31.00	$7.45
99284 Emergency department visit with moderate level of medical decision making	87	86	$512.48	$130.46
99291 Critical care, first 30-74 minutes	66	65	$963.00	$235.45
93308 Ultrasound of heart, follow-up	30	30	$118.00	$27.52
76604 Ultrasound scan of chest	28	28	$126.00	$29.20
76705 Limited ultrasound scan of abdomen	27	27	$129.00	$31.51
99283 Emergency department visit with low level of medical decision making	23	22	$286.74	$76.85
99217 Hospital observation care on day of discharge	21	21	$320.00	$78.55
99220 Hospital observation care, typically 70 minutes	17	17	$809.00	$195.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	124	124	$737.00	$185.27
93042 Interpretation and report of electrical activity of heart using 1-3 leads	79	70	$30.48	$7.67
99284 Emergency department visit with moderate level of medical decision making	65	65	$503.82	$127.74
99291 Critical care, first 30-74 minutes	46	46	$963.00	$240.67
99283 Emergency department visit with low level of medical decision making	24	23	$271.04	$69.73
99217 Hospital observation care on day of discharge	22	22	$320.00	$79.95
76604 Ultrasound scan of chest	22	22	$123.09	$30.32
76705 Limited ultrasound scan of abdomen	21	21	$129.00	$32.20
93308 Ultrasound of heart, follow-up	21	21	$115.71	$28.34
99220 Hospital observation care, typically 70 minutes	15	15	$809.00	$201.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	78	78	$737.00	$181.40
99284 Emergency department visit with moderate level of medical decision making	61	60	$500.00	$123.41
93042 Interpretation and report of electrical activity of heart using 1-3 leads	59	59	$30.00	$7.52
99291 Critical care, first 30-74 minutes	33	33	$963.00	$235.73
99283 Emergency department visit with low level of medical decision making	27	26	$264.00	$65.08
76705 Limited ultrasound scan of abdomen	16	16	$129.00	$31.54
93308 Ultrasound of heart, follow-up	14	14	$112.00	$27.79
76604 Ultrasound scan of chest	14	14	$118.00	$27.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	119	118	$737.00	$179.82
93042 Interpretation and report of electrical activity of heart using 1-3 leads	93	81	$30.00	$7.47
99284 Emergency department visit with moderate level of medical decision making	65	65	$500.00	$122.81
99283 Emergency department visit with low level of medical decision making	29	29	$264.00	$64.83
76705 Limited ultrasound scan of abdomen	21	20	$129.00	$31.72
99291 Critical care, first 30-74 minutes	19	19	$963.00	$235.30
99217 Hospital observation care on day of discharge	19	19	$320.00	$78.86
76604 Ultrasound scan of chest	19	19	$118.00	$27.59
93308 Ultrasound of heart, follow-up	18	18	$112.00	$27.65
99220 Hospital observation care, typically 70 minutes	13	13	$809.00	$199.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	135	133	$733.19	$181.47
93042 Interpretation and report of electrical activity of heart using 1-3 leads	82	80	$30.00	$7.49
99284 Emergency department visit with moderate level of medical decision making	75	74	$501.36	$122.48
99291 Critical care, first 30-74 minutes	44	44	$959.73	$237.00
99283 Emergency department visit with low level of medical decision making	26	25	$262.38	$64.95
76604 Ultrasound scan of chest	25	25	$118.88	$27.71
76705 Limited ultrasound scan of abdomen	25	25	$128.16	$31.86
93308 Ultrasound of heart, follow-up	22	22	$112.00	$27.66
99217 Hospital observation care on day of discharge	13	13	$317.69	$78.77

Medical Specialties & State Licenses

Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

State License CA A116544

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.

Hospital & Practice Group Affiliations

Regents Of The University Of

101 The City Dr S, Orange, CA 928683201

Phone: 7144567004

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active June 13, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location June 13, 2011

Registered at 101 THE CITY DR S BLDG 1A, ORANGE, CA 928683201 (Tel: 5109106981)

📍

Updated Business Mailing Address June 13, 2011

Registered at 101 THE CITY DR S BLDG 1A, ORANGE, CA 928683201 (Tel: 5109106981)

👤

Provider Name / Credentials Updated June 13, 2011

Recorded as ROBERT KATZER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 13, 2011

Emergency Medicine (License #A116544 in CA)

🟢

Initial NPI Registration & Enumeration June 12, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1467612580

Entity Type:

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

Enumeration Date: June 12, 2008

Last Update: June 13, 2011

Sole Proprietor: No

Update or Correct Profile

Mailing Address

101 The City Dr S Bldg 1a

Orange, CA 928683201

Phone: 5109106981

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.