Active NPI 1114109253 Individual Practitioner Male Practitioner

Dr. Janaka Manoj Kumar Periyapperuma , MD

Internal Medicine • Danbury, CT

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Janaka Periyapperuma, MD is a certified Internal Medicine practicing in Danbury, CT. With approximately 29 years of clinical experience since completing medical education in 1997, Dr. Periyapperuma delivers high-quality medical care to the local community at 24 HOSPITAL AVE.

Dr. Periyapperuma is affiliated with Nuvance Health Medical Practice Ct Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

24 Hospital Ave

Danbury, CT 068106099

Telephone 2037396959

Fax 2037396495

Associated Practice Facility / Clinic

🏢 Danbury Radiological Associates, Pc Facility NPI 1639164106

Medicare Profile & Education

Medical School

Other

Graduation Year

1997

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Danbury, CT

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

29 Yrs +7.7 yrs vs City Avg

City Avg: 21.3 Yrs

State Avg: 30.4 Yrs

Regional Practice Density

117 Specialists

Practicing in Danbury, CT (2753 Statewide)

Telehealth Adoption Rate

16.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

65.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Periyapperuma (29 Years) 29 Yrs

Danbury Specialty Average (21.3 Years) 21.3 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	221	123	$382.81	$126.02
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	169	100	$206.59	$83.69
99239 Hospital discharge day management, more than 30 minutes	102	102	$396.50	$122.01
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	52	52	$577.42	$183.97
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	25	$379.52	$139.14
99238 Hospital discharge day management, 30 minutes or less	17	17	$211.12	$86.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	300	132	$381.00	$125.70
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	234	133	$198.00	$83.56
99239 Hospital discharge day management, more than 30 minutes	126	126	$394.00	$121.46
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	18	$117.00	$52.47
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$376.00	$137.51
99238 Hospital discharge day management, 30 minutes or less	11	11	$201.00	$85.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	294	142	$366.86	$108.56
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	156	76	$190.56	$75.38
99239 Hospital discharge day management, more than 30 minutes	108	105	$379.05	$112.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	396	195	$235.04	$110.04
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	168	106	$152.77	$76.54
99239 Hospital discharge day management, more than 30 minutes	157	153	$240.02	$113.89
99217 Hospital observation care on day of discharge	13	13	$163.07	$77.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	285	153	$194.00	$112.67
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	134	67	$135.00	$78.33
99239 Hospital discharge day management, more than 30 minutes	127	122	$200.00	$115.46
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	14	14	$367.00	$218.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	447	216	$194.00	$110.89
99239 Hospital discharge day management, more than 30 minutes	147	143	$200.00	$114.71
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	129	85	$135.00	$77.63
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	32	32	$367.00	$215.88
99217 Hospital observation care on day of discharge	17	17	$139.00	$78.33
99238 Hospital discharge day management, 30 minutes or less	15	15	$140.00	$78.33
99220 Hospital observation care, typically 70 minutes	13	13	$392.38	$198.06
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$250.00	$146.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	556	255	$194.00	$109.99
99239 Hospital discharge day management, more than 30 minutes	136	131	$200.00	$113.85
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	105	105	$367.00	$215.20
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	96	61	$135.00	$77.18
99220 Hospital observation care, typically 70 minutes	31	31	$301.00	$197.43
99238 Hospital discharge day management, 30 minutes or less	15	15	$140.00	$77.87
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$250.00	$145.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	643	260	$194.00	$108.70
99239 Hospital discharge day management, more than 30 minutes	176	164	$200.00	$112.20
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	106	80	$137.23	$73.38
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	70	70	$367.00	$208.44
99238 Hospital discharge day management, 30 minutes or less	41	40	$140.00	$76.98
99220 Hospital observation care, typically 70 minutes	23	23	$301.00	$196.60
99217 Hospital observation care on day of discharge	15	15	$139.00	$77.49

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CT 046840

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.

Hospitalist

NUCC Taxonomy Code: 208M00000X

State License CT 046840

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Hospital & Practice Group Affiliations

Nuvance Health Medical Practice Ct Inc

24 Hospital Ave, Danbury, CT 068106099

Phone: 2037397118

Practice Associates & Co-Workers

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

34 Associated Practitioners

Rebecca Rehnberg , PA-C

Physician Assistant - Medical

NPI 1073966255

Physician Assistant (Certified)

Michelle Mcruiz , PA

Physician Assistant - Medical

NPI 1215266226

Physician Assistant

Dr. Mohamed Ahmed , MD

Internal Medicine

NPI 1235391756

Doctor of Medicine (M.D.)

Dr. George Iannini , MD

Internal Medicine

NPI 1245310432

Doctor of Medicine (M.D.)

Dr. Christian Espana Schmidt , MD

Internal Medicine

NPI 1245527316

Doctor of Medicine (M.D.)

Dr. Maja Simic , MD

Internal Medicine

NPI 1245579630

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 March 30, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location March 30, 2012

Registered at 24 HOSPITAL AVE, DANBURY, CT 068106099 (Tel: 2037396959)

📍

Updated Business Mailing Address March 30, 2012

Registered at 24 HOSPITAL AVE, DANBURY, CT 068106099 (Tel: 2037396959)

👤

Provider Name / Credentials Updated March 30, 2012

Recorded as JANAKA PERIYAPPERUMA, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 30, 2012

Internal Medicine (License #046840 in CT)

🟢

Initial NPI Registration & Enumeration November 30, 2007

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: 1114109253

Entity Type:

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

Enumeration Date: November 30, 2007

Last Update: March 30, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

24 Hospital Ave

Danbury, CT 068106099

Phone: 2037396959

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.