Active NPI 1083710008 Individual Practitioner Male Practitioner

Dr. Marc Eisenbaum , MD

Internal Medicine • Fairfax, VA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Marc Eisenbaum, MD is a certified Internal Medicine practicing in Fairfax, VA. With approximately 45 years of clinical experience since graduating from George Washington University School Of Medicine in 1981, Dr. Eisenbaum delivers high-quality medical care to the local community at 3580 JOSEPH SIEWICK DR STE 304.

Dr. Eisenbaum is affiliated with Select Rehabilitation, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3580 Joseph Siewick Dr Ste 304

Fairfax, VA 220331764

Telephone 7037588313

Medicare Profile & Education

Medical School

George Washington University School Of Medicine

Graduation Year

1981

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Fairfax, VA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

45 Yrs +16.6 yrs vs City Avg

City Avg: 28.4 Yrs

State Avg: 26.1 Yrs

Regional Practice Density

114 Specialists

Practicing in Fairfax, VA (3758 Statewide)

Telehealth Adoption Rate

36.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

13.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Eisenbaum (45 Years) 45 Yrs

Fairfax Specialty Average (28.4 Years) 28.4 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
36415 Insertion of needle into vein for collection of blood sample	839	520	$9.00	$8.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	542	320	$180.00	$141.37
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	538	318	$22.00	$17.72
99213 Established patient office or other outpatient visit, typically 15 minutes	523	366	$119.91	$100.61
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	409	409	$160.00	$143.66
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	248	166	$75.04	$62.68
93000 Routine ekg using at least 12 leads including interpretation and report	99	93	$37.00	$16.03
G0008 Administration of influenza virus vaccine	76	76	$36.53	$35.48
90653 Vaccine for influenza for injection into muscle	74	74	$86.00	$81.82
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	27	27	$198.33	$182.57
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	13	13	$204.23	$182.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	804	532	$9.00	$8.37
99213 Established patient office or other outpatient visit, typically 15 minutes	574	411	$119.93	$103.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	487	310	$175.30	$145.07
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	426	426	$160.04	$148.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	305	211	$75.07	$65.13
93000 Routine ekg using at least 12 leads including interpretation and report	106	98	$37.00	$16.54
G0008 Administration of influenza virus vaccine	65	65	$35.25	$34.38
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	57	56	$80.00	$75.81
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	26	26	$194.62	$188.04
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	22	22	$205.00	$188.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	803	536	$8.99	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	681	487	$120.01	$104.66
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	425	425	$160.31	$152.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	407	267	$160.05	$145.85
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	305	205	$75.03	$66.03
93000 Routine ekg using at least 12 leads including interpretation and report	87	81	$37.00	$16.79
G0008 Administration of influenza virus vaccine	57	57	$35.00	$34.30
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	49	49	$72.94	$70.22
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	29	29	$205.00	$194.45
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	19	19	$204.74	$193.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$214.00	$194.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$196.00	$130.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	823	517	$8.98	$2.97
99213 Established patient office or other outpatient visit, typically 15 minutes	717	501	$118.46	$104.83
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	442	442	$159.46	$152.96
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	330	206	$74.30	$64.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	306	220	$159.62	$146.54
93000 Routine ekg using at least 12 leads including interpretation and report	94	92	$37.00	$17.00
G0008 Administration of influenza virus vaccine	49	49	$35.00	$19.66
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	40	40	$70.00	$64.77
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	31	31	$201.61	$193.39
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$195.98	$125.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$214.02	$193.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	768	510	$8.98	$2.95
99213 Established patient office or other outpatient visit, typically 15 minutes	679	505	$104.99	$85.31
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	427	427	$150.60	$133.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	291	212	$154.83	$123.25
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	280	197	$65.00	$51.81
93000 Routine ekg using at least 12 leads including interpretation and report	98	89	$37.00	$19.89
G0008 Administration of influenza virus vaccine	58	58	$35.00	$19.45
90662 Influenza vaccine split virus, preservative free	38	38	$62.00	$60.98
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	26	26	$201.92	$189.12
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	20	20	$40.00	$19.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$195.60	$117.31
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	12	12	$205.00	$193.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	805	510	$8.98	$2.90
99213 Established patient office or other outpatient visit, typically 15 minutes	772	511	$104.93	$83.56
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	406	244	$65.00	$51.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	343	234	$155.00	$121.64
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	319	319	$154.39	$131.54
93000 Routine ekg using at least 12 leads including interpretation and report	98	92	$37.00	$19.44
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	95	95	$204.95	$192.89
G0008 Administration of influenza virus vaccine	85	85	$36.96	$19.06
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	85	85	$39.88	$17.48
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$195.60	$109.59
G0009 Administration of pneumococcal vaccine	16	16	$28.50	$19.06
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	16	16	$150.00	$108.76
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	15	15	$310.00	$204.00
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	15	15	$198.67	$186.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	796	509	$8.99	$2.91
99213 Established patient office or other outpatient visit, typically 15 minutes	764	479	$104.97	$79.55
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	378	231	$64.97	$48.68
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	310	310	$204.76	$187.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	306	219	$155.00	$117.16
93000 Routine ekg using at least 12 leads including interpretation and report	104	96	$37.00	$18.82
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	84	84	$40.00	$17.06
G0008 Administration of influenza virus vaccine	81	81	$35.00	$23.72
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	62	62	$167.82	$128.48
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	60	60	$200.00	$159.84
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	27	27	$310.00	$237.39
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	27	27	$203.33	$181.62
G0009 Administration of pneumococcal vaccine	17	17	$28.50	$23.72
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	16	16	$141.25	$105.59
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$195.60	$119.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	831	541	$6.29	$2.91
99213 Established patient office or other outpatient visit, typically 15 minutes	471	290	$104.94	$78.96
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	453	452	$199.96	$157.44
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	376	226	$65.00	$48.01
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	302	212	$154.85	$115.75
93000 Routine ekg using at least 12 leads including interpretation and report	114	108	$37.00	$18.95
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	83	83	$40.00	$17.48
G0008 Administration of influenza virus vaccine	83	83	$35.00	$29.60
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	20	20	$98.75	$91.23
G0009 Administration of pneumococcal vaccine	20	20	$28.57	$28.00
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	12	12	$269.48	$225.18

Medical Specialties & State Licenses

CMS Verified: 2026-06-03

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License VA 0101040504

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

006070400 (VA)

Hospital & Practice Group Affiliations

Select Rehabilitation, Llc

2600 Compass Rd, Glenview, IL 600268001

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location June 03, 2026

Registered at 3580 JOSEPH SIEWICK DR STE 304, FAIRFAX, VA 220331764 (Tel: 7037588313)

📍

Updated Business Mailing Address June 03, 2026

Registered at 3580 JOSEPH SIEWICK DR STE 304, FAIRFAX, VA 220331764 (Tel: 7037588313)

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 3700 JOSEPH SIEWICK DR, SUITE 203, FAIRFAX, VA 220331744 (Tel: 7037588313)

📍

Updated Business Mailing Address July 08, 2007

Registered at 3700 JOSEPH SIEWICK DR, SUITE 203, FAIRFAX, VA 220331744 (Tel: 7037588313)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MARC EISENBAUM, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #0101040504 in VA)

🟢

Initial NPI Registration & Enumeration September 16, 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: 1083710008

Entity Type:

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

Enumeration Date: September 16, 2006

Last Update: June 03, 2026

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

3580 Joseph Siewick Dr Ste 304

Fairfax, VA 220331764

Phone: 7037588313

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

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