Active NPI 1487744280 Individual Practitioner Male Practitioner

Dr. Warren Orrin Ferris , MD

Internal Medicine • Silver Spring, MD

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Warren Ferris, MD is a certified Internal Medicine practicing in Silver Spring, MD. With approximately 50 years of clinical experience since graduating from University Of Missouri, Columbia School Of Medicine in 1976, Dr. Ferris delivers high-quality medical care to the local community at 3305 NORTH LEISURE WORLD BOULEVARD.

Dr. Ferris is affiliated with Medstar Medical Group Ii Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, methylprednisolone acetate, 1 mg, established patient outpatient office visit, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3305 North Leisure World Boulevard

Silver Spring, MD 20906

Telephone 3015981554

Fax 3015581509

Medicare Profile & Education

Medical School

University Of Missouri, Columbia School Of Medicine

Graduation Year

1976

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Silver Spring, MD

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

50 Yrs +22.1 yrs vs City Avg

City Avg: 27.9 Yrs

State Avg: 28.1 Yrs

Regional Practice Density

196 Specialists

Practicing in Silver Spring, MD (4114 Statewide)

Telehealth Adoption Rate

20.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

66.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ferris (50 Years) 50 Yrs

Silver Spring Specialty Average (27.9 Years) 27.9 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
J1010 Injection, methylprednisolone acetate, 1 mg	2,085	22	$0.20	$0.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	595	235	$323.92	$108.17
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	89	89	$553.80	$204.99
20610 Aspiration and/or injection of fluid from large joint	31	21	$221.16	$72.70
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	31	$459.61	$142.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	613	228	$289.06	$115.49
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	79	79	$515.66	$225.50
J1040 Injection, methylprednisolone acetate, 80 mg	38	24	$28.30	$11.92
20610 Aspiration and/or injection of fluid from large joint	37	24	$211.08	$74.07
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	18	13	$58.11	$16.12
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	16	16	$414.19	$164.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	744	266	$265.04	$129.29
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	81	78	$353.00	$190.06
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	76	76	$503.00	$233.93
20610 Aspiration and/or injection of fluid from large joint	48	28	$209.00	$76.60
J1040 Injection, methylprednisolone acetate, 80 mg	33	23	$28.30	$10.94
99213 Established patient office or other outpatient visit, typically 15 minutes	13	11	$186.92	$91.94
J1020 Injection, methylprednisolone acetate, 20 mg	12	11	$8.83	$3.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	718	246	$263.00	$144.44
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	84	79	$353.00	$200.14
20610 Aspiration and/or injection of fluid from large joint	67	40	$209.00	$77.40
J1040 Injection, methylprednisolone acetate, 80 mg	59	39	$28.30	$10.61
99213 Established patient office or other outpatient visit, typically 15 minutes	56	42	$180.00	$101.56
99443 Telephone medical discussion with physician, 21-30 minutes	44	31	$263.00	$143.57
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	43	43	$503.00	$253.78
J1020 Injection, methylprednisolone acetate, 20 mg	19	14	$8.83	$3.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	514	229	$263.00	$124.67
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	93	79	$353.00	$167.50
20610 Aspiration and/or injection of fluid from large joint	71	37	$209.00	$72.95
99213 Established patient office or other outpatient visit, typically 15 minutes	66	47	$180.00	$86.65
99443 Telephone medical discussion with physician, 21-30 minutes	64	44	$263.00	$125.09
J1040 Injection, methylprednisolone acetate, 80 mg	47	32	$28.30	$11.58
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	39	39	$503.00	$227.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,044	446	$247.15	$122.42
99213 Established patient office or other outpatient visit, typically 15 minutes	299	169	$165.54	$84.03
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	205	179	$333.63	$163.65
20610 Aspiration and/or injection of fluid from large joint	115	56	$148.19	$68.87
J1040 Injection, methylprednisolone acetate, 80 mg	78	49	$20.56	$12.16
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	55	55	$474.05	$231.34
G0008 Administration of influenza virus vaccine	47	47	$65.00	$19.06
90653 Vaccine for influenza for injection into muscle	45	45	$117.98	$58.34
87804 Detection test by immunoassay with direct visual observation for influenza virus	41	41	$44.22	$16.22
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	39	31	$120.46	$60.40
81003 Automated urinalysis test	37	35	$11.84	$2.44
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	32	31	$49.75	$15.69
93000 Routine ekg using at least 12 leads including interpretation and report	31	31	$58.06	$19.61
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	31	13	$53.19	$26.36
J1020 Injection, methylprednisolone acetate, 20 mg	25	16	$14.90	$3.78
20605 Aspiration and/or injection of medium joint or joint capsule	16	13	$126.56	$57.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	870	336	$230.00	$121.31
99213 Established patient office or other outpatient visit, typically 15 minutes	262	157	$157.00	$82.43
J1040 Injection, methylprednisolone acetate, 80 mg	93	56	$15.00	$12.94
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	79	74	$309.00	$163.40
20610 Aspiration and/or injection of fluid from large joint	72	49	$98.00	$69.22
20605 Aspiration and/or injection of medium joint or joint capsule	54	31	$120.00	$57.81
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	54	54	$441.00	$232.56
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	33	31	$100.00	$61.24
J1020 Injection, methylprednisolone acetate, 20 mg	24	17	$20.00	$4.77
93000 Routine ekg using at least 12 leads including interpretation and report	22	21	$56.82	$19.57
20600 Aspiration and/or injection of fluid from small joint	16	13	$88.00	$54.88
81003 Automated urinalysis test	15	14	$14.00	$2.71
87804 Detection test by immunoassay with direct visual observation for influenza virus	13	13	$42.00	$16.22
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	11	11	$50.00	$16.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	937	328	$201.00	$120.73
99213 Established patient office or other outpatient visit, typically 15 minutes	172	98	$137.00	$82.52
20610 Aspiration and/or injection of fluid from large joint	113	55	$98.00	$69.12
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	73	68	$268.00	$162.38
J1040 Injection, methylprednisolone acetate, 80 mg	69	42	$15.00	$11.03
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	64	22	$330.00	$146.98
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	47	47	$383.00	$227.08
20605 Aspiration and/or injection of medium joint or joint capsule	42	27	$120.00	$57.30
J1020 Injection, methylprednisolone acetate, 20 mg	34	21	$20.00	$5.13
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	25	23	$100.00	$61.13
93000 Routine ekg using at least 12 leads including interpretation and report	22	21	$75.00	$19.53
20600 Aspiration and/or injection of fluid from small joint	21	14	$88.00	$54.38

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MD D31918

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine - Rheumatology

NUCC Taxonomy Code: 207RR0500X

State License MD D31918

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

607100700 (MD)

Hospital & Practice Group Affiliations

Medstar Medical Group Ii Llc

3007 Tilden St Nw, Washington, DC 200083030

Medstar Medical Group Ii Llc

1145 19th St Nw, Washington, DC 200363735

Phone: 2024292401

Medstar Medical Group Ii Llc

3305 N Leisure World Blvd, Silver Spring, MD 209061367

Phone: 3015981590

Practice Associates & Co-Workers

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

2 Associated Practitioners

Patricia Grodin , RN, MS, CS, P

Registered Nurse - Psychiatric/Mental Health, Adult

NPI 1245277094

Registered Nurse, Master of Science, CS, P

Dr. Xiao-Chun Sharon Yang , MD

Single Specialty

NPI 1932162278

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 19, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location June 19, 2013

Registered at 3305 NORTH LEISURE WORLD BOULEVARD, SILVER SPRING, MD 20906 (Tel: 3015981554)

📍

Updated Business Mailing Address June 19, 2013

Registered at 3305 NORTH LEISURE WORLD BOULEVARD, SILVER SPRING, MD 20906 (Tel: 3015981554)

👤

Provider Name / Credentials Updated June 19, 2013

Recorded as WARREN FERRIS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 19, 2013

Internal Medicine (License #D31918 in MD)

🟢

Initial NPI Registration & Enumeration October 13, 2006

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: 1487744280

Entity Type:

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

Enumeration Date: October 13, 2006

Last Update: June 19, 2013

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3305 North Leisure World Boulevard

Silver Spring, MD 20906

Phone: 3015981554

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.