Active NPI 1275556912 Individual Practitioner Male Practitioner

Dr. Eric S. Iida , MD

Internal Medicine - Nephrology • Worcester, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Eric Iida, MD is a certified Internal Medicine - Nephrology practicing in Worcester, MA. With approximately 31 years of clinical experience since graduating from Medical College Of Pennsylvania in 1995, Dr. Iida delivers high-quality medical care to the local community at 55 LAKE AVE N.

Dr. Iida is affiliated with Umass Memorial Medical Group Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, subsequent hospital care with moderate levelof medical decision making, if using time, at least, dialysis services. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Lake Ave N

Worcester, MA 016550002

Telephone 5083343155

Associated Practice Facility / Clinic

🏢 Umass Memorial Medical Center Facility NPI 1679574933

Medicare Profile & Education

Medical School

Medical College Of Pennsylvania

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Nephrology in Worcester, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +6.5 yrs vs City Avg

City Avg: 24.5 Yrs

State Avg: 30.4 Yrs

Regional Practice Density

42 Specialists

Practicing in Worcester, MA (433 Statewide)

Telehealth Adoption Rate

35.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

71.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Iida (31 Years) 31 Yrs

Worcester Specialty Average (24.5 Years) 24.5 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	234	184	$445.00	$131.92
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	179	85	$238.00	$78.98
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	176	28	$1289.00	$361.43
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	154	144	$47.00	$16.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	69	50	$445.00	$98.27
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	61	31	$1040.00	$301.23
99213 Established patient office or other outpatient visit, typically 15 minutes	53	53	$300.00	$92.84
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	52	51	$450.00	$130.84
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	40	33	$47.00	$16.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$547.00	$168.62
99231 Follow-up hospital inpatient care per day, typically 15 minutes	20	15	$158.00	$49.58
99213 Established patient office or other outpatient visit, typically 15 minutes	15	15	$300.00	$65.93
99221 Initial hospital inpatient care per day, typically 30 minutes	14	14	$331.00	$82.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	12	$178.00	$58.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	374	163	$238.00	$80.39
99213 Established patient office or other outpatient visit, typically 15 minutes	291	206	$280.76	$93.28
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	159	35	$1040.00	$306.41
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	134	119	$450.00	$132.71
99213 Established patient office or other outpatient visit, typically 15 minutes	56	45	$285.00	$67.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	39	$432.71	$131.96
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	40	27	$1289.00	$369.00
99231 Follow-up hospital inpatient care per day, typically 15 minutes	37	29	$158.00	$48.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$547.00	$171.57
90962 Dialysis services, 1 physician visit per month (20 years or older)	30	20	$751.00	$211.08
90935 Hemodialysis procedure with physician evaluation	28	15	$366.00	$72.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	17	$402.00	$99.42
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$547.00	$135.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	18	$178.00	$58.73
99221 Initial hospital inpatient care per day, typically 30 minutes	18	18	$331.00	$84.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$359.00	$108.83
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$178.00	$34.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	357	157	$238.00	$73.84
99213 Established patient office or other outpatient visit, typically 15 minutes	236	187	$244.00	$94.89
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	126	37	$1040.00	$313.30
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	108	100	$450.00	$139.63
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	91	24	$1289.00	$377.00
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	79	69	$359.00	$135.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$547.00	$173.42
99213 Established patient office or other outpatient visit, typically 15 minutes	46	33	$244.00	$69.47
99231 Follow-up hospital inpatient care per day, typically 15 minutes	44	34	$158.00	$40.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	31	$359.00	$102.09
90935 Hemodialysis procedure with physician evaluation	39	28	$366.00	$75.45
90962 Dialysis services, 1 physician visit per month (20 years or older)	26	17	$751.00	$215.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$359.00	$117.76
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	20	20	$667.00	$205.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	19	$178.00	$59.73
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$547.00	$140.47
99221 Initial hospital inpatient care per day, typically 30 minutes	15	14	$331.00	$103.49
99442 Telephone medical discussion with physician, 11-20 minutes	14	14	$263.00	$95.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	315	163	$235.81	$74.70
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	296	187	$353.33	$136.93
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	195	36	$1289.00	$377.51
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	137	46	$1040.00	$312.69
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	83	81	$658.57	$208.71
99231 Follow-up hospital inpatient care per day, typically 15 minutes	60	43	$158.00	$40.04
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	58	50	$446.76	$141.21
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	50	36	$355.56	$104.31
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	34	34	$674.15	$233.74
90935 Hemodialysis procedure with physician evaluation	30	22	$366.00	$76.12
99213 Established patient office or other outpatient visit, typically 15 minutes	23	21	$242.70	$96.70
99442 Telephone medical discussion with physician, 11-20 minutes	15	14	$263.00	$96.86
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$530.43	$176.90
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	12	$144.85	$59.75
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$328.33	$104.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$536.45	$142.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	513	237	$215.00	$76.53
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	238	162	$316.00	$114.61
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	227	41	$1289.00	$303.08
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	133	40	$1036.72	$255.43
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	89	88	$597.00	$213.88
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	51	48	$403.00	$145.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	27	$316.00	$83.64
99442 Telephone medical discussion with physician, 11-20 minutes	35	34	$210.20	$79.89
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	31	31	$617.00	$211.21
99231 Follow-up hospital inpatient care per day, typically 15 minutes	28	27	$127.36	$41.64
90935 Hemodialysis procedure with physician evaluation	23	21	$366.00	$78.14
90945 Dialysis procedure including 1 evaluation	21	12	$373.00	$92.10
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	19	13	$308.00	$110.41
99221 Initial hospital inpatient care per day, typically 30 minutes	17	16	$299.00	$108.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	515	211	$214.83	$76.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	308	189	$314.18	$114.34
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	285	46	$1289.00	$296.81
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	114	102	$595.91	$211.50
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	90	35	$1040.00	$250.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	54	40	$314.15	$82.42
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	$615.33	$217.32
99231 Follow-up hospital inpatient care per day, typically 15 minutes	35	27	$118.94	$41.17
90935 Hemodialysis procedure with physician evaluation	30	26	$366.00	$76.68
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	27	25	$402.33	$143.43
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$214.00	$78.33
99221 Initial hospital inpatient care per day, typically 30 minutes	15	15	$299.00	$106.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	617	198	$210.00	$75.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	286	167	$296.00	$112.51
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	251	48	$1289.00	$292.72
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	112	43	$1040.00	$247.63
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	64	62	$566.00	$210.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	62	41	$296.00	$81.52
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	32	32	$605.00	$216.07
99231 Follow-up hospital inpatient care per day, typically 15 minutes	30	18	$117.00	$40.68
90935 Hemodialysis procedure with physician evaluation	17	11	$366.00	$75.37
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	15	$385.00	$142.60
99213 Established patient office or other outpatient visit, typically 15 minutes	15	15	$199.00	$76.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	763	261	$208.82	$73.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	259	150	$296.00	$111.03
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	257	49	$1289.00	$290.29
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	115	108	$565.15	$206.24
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	101	76	$296.00	$80.38
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	87	38	$1035.76	$242.71
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	48	48	$602.50	$212.05
90935 Hemodialysis procedure with physician evaluation	31	24	$366.00	$73.71
99231 Follow-up hospital inpatient care per day, typically 15 minutes	22	18	$117.00	$40.06
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$199.00	$73.31
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	17	14	$1289.00	$290.25
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	16	$383.76	$139.71
99221 Initial hospital inpatient care per day, typically 30 minutes	11	11	$281.64	$103.36
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	11	11	$1040.00	$243.98

Medical Specialties & State Licenses

CMS Verified: 2026-04-10

Internal Medicine - Nephrology Primary Specialty

NUCC Taxonomy Code: 207RN0300X

State License MA 156090

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

110005038A (MA)

Hospital & Practice Group Affiliations

Umass Memorial Medical Group Inc

119 Belmont St, Worcester, MA 016052903

Phone: 5083341000

Umass Memorial Medical Group Inc

14 Prospect St, Milford, MA 017573003

Phone: 5084731190

Umass Memorial Medical Group Inc

157 Union St, Marlborough, MA 017521228

Phone: 5084865521

Umass Memorial Medical Group Inc

281 E Hartford Ave, Uxbridge, MA 015691278

Phone: 5082785573

Umass Memorial Medical Group Inc

378 Plantation St, Worcester, MA 016052324

Phone: 5083341000

Umass Memorial Medical Group Inc

155 Union St, Marlborough, MA 017521228

Phone: 5084817390

Umass Memorial Medical Group Inc

1 Innovation Dr, Worcester, MA 016054307

Phone: 5087936100

Umass Memorial Medical Group Inc

55 Lake Ave N, Worcester, MA 016550002

Phone: 5083341000

Secondary Practice Locations

281 E Hartford Ave

Uxbridge, MA 015691253

Phone: 5082785573

119 Belmont St

Worcester, MA 016052903

Phone: 5083343155

Practice Associates & Co-Workers

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

14 Associated Practitioners

Dr. Moonyoung Choi , MD

Student in an Organized Health Care Education/Training Program

NPI 1043967672

Doctor of Medicine (M.D.)

Dr. Jason Kurland , MD

Internal Medicine - Nephrology

NPI 1194940692

Doctor of Medicine (M.D.)

Dr. Kirti Basil , DO

Internal Medicine - Nephrology

NPI 1245644988

Doctor of Osteopathic Medicine (D.O.)

Lauren Powell , NP

Nurse Practitioner

NPI 1295196517

Nurse Practitioner

Dr. Sul A Lee , MD

Internal Medicine - Nephrology

NPI 1326601311

Doctor of Medicine (M.D.)

Dr. Dongqi Liu , MD

Internal Medicine - Nephrology

NPI 1427580489

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

7 Historical Events

📍

Updated Practice Location April 16, 2025

Registered at 55 LAKE AVE N, WORCESTER, MA 016550002 (Tel: 5083343155)

✅

NPI Profile Active March 07, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location March 07, 2016

Registered at 55 LAKE AVE N, RENAL DIVISION, WORCESTER, MA 016550002 (Tel: 5088563156)

📍

Updated Business Mailing Address March 07, 2016

Registered at PO BOX 415348, BOSTON, MA 022415348

👤

Provider Name / Credentials Updated March 07, 2016

Recorded as ERIC IIDA, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 07, 2016

Internal Medicine (License #156090 in MA)

🟢

Initial NPI Registration & Enumeration July 25, 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: 1275556912

Entity Type:

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

Enumeration Date: July 25, 2006

Last Update: April 10, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 415348

Boston, MA 022415348

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.