Active NPI 1912006065 Individual Practitioner Male Practitioner

Dr. Claes M Nilsson , MD

Internal Medicine • Dedham, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Claes Nilsson, MD is a certified Internal Medicine practicing in Dedham, MA. With approximately 53 years of clinical experience since graduating from Yale University School Of Medicine in 1973, Dr. Nilsson delivers high-quality medical care to the local community at 990 WASHINGTON ST.

Dr. Nilsson is affiliated with Vantage Healthcare Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least, residence visit for established patient with low level of medical decision making, per day, if using time, at least, subsequent nursing facility care with moderate level of medical decision making, per day, 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

990 Washington St
Suite 203

Dedham, MA 020266714

Telephone 4135436820

Fax 7813261384

Associated Practice Facility / Clinic

🏢 Ipc Hospitalists Of New England, P.c. Facility NPI 1659555266

Medicare Profile & Education

Medical School

Yale University School Of Medicine

Graduation Year

1973

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Dedham, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

53 Yrs +14.9 yrs vs City Avg

City Avg: 38.1 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

25 Specialists

Practicing in Dedham, MA (7127 Statewide)

Telehealth Adoption Rate

60.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

58.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Nilsson (53 Years) 53 Yrs

Dedham Specialty Average (38.1 Years) 38.1 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
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	427	254	$146.91	$76.79
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	209	103	$230.00	$79.99
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	85	68	$207.18	$109.85
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes	44	37	$350.00	$132.70
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	28	27	$348.21	$138.39
99347 Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes	28	28	$150.00	$47.86
99306 Initial nursing facility visit, typically 45 minutes per day	18	18	$423.89	$187.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	412	152	$230.00	$80.56
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	230	104	$142.61	$79.71
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes	206	84	$350.00	$134.65
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	84	45	$206.67	$114.47
99347 Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes	37	31	$150.00	$46.85
99306 Initial nursing facility visit, typically 45 minutes per day	19	19	$450.00	$193.62
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes	12	12	$485.00	$195.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	534	117	$147.50	$74.39
99335 Established patient assisted living visit, typically 25 minutes	354	121	$251.00	$101.99
99334 Established patient custodial care facility, group care, or assisted living visit, typically 15 minutes	328	111	$159.00	$64.79
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	265	77	$225.76	$99.48
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	234	21	$114.23	$47.02
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	29	26	$224.03	$139.45
99325 New patient assisted living visit, typically 30 minutes	27	27	$211.00	$83.93
99324 New patient assisted living visit, typically 20 minutes	11	11	$146.00	$57.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	1,706	279	$110.00	$75.75
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	1,532	234	$225.00	$99.97
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	266	232	$205.00	$141.22
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	179	77	$70.00	$48.18
99497 Advance care planning, first 30 minutes	52	13	$135.00	$85.13
99306 Initial nursing facility visit, typically 45 minutes per day	43	40	$264.00	$181.27
99304 Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	42	40	$143.00	$97.68
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	12	11	$213.00	$147.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	2,204	306	$224.15	$101.42
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	243	104	$125.25	$77.78
99304 Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	134	123	$143.34	$101.00
99306 Initial nursing facility visit, typically 45 minutes per day	63	60	$481.49	$181.47
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	44	12	$267.00	$99.92
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	41	39	$250.98	$144.70
99497 Advance care planning, first 30 minutes	30	15	$135.00	$88.02
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	27	24	$212.89	$150.88
99315 Nursing facility discharge day management, 30 minutes or less	15	14	$169.60	$81.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	631	136	$199.20	$75.60
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	376	105	$129.21	$48.23
99306 Initial nursing facility visit, typically 45 minutes per day	187	168	$476.27	$181.77
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	182	64	$257.71	$100.49
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	83	31	$363.08	$142.23
99315 Nursing facility discharge day management, 30 minutes or less	32	27	$206.44	$80.45
99306 Initial nursing facility visit, typically 45 minutes per day	16	14	$467.75	$181.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	1,831	358	$185.93	$74.17
99306 Initial nursing facility visit, typically 45 minutes per day	307	278	$446.52	$176.99
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	305	131	$245.66	$97.93
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	289	89	$361.76	$141.26
99316 Nursing facility discharge management, more than 30 minutes	65	59	$282.80	$111.81
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes	31	31	$377.00	$147.97
99318 Nursing facility annual assessment, typically 30 minutes	28	28	$254.00	$104.13
99304 Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	14	14	$255.00	$98.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	3,877	572	$179.07	$70.89
99306 Initial nursing facility visit, typically 45 minutes per day	641	531	$429.19	$170.48
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	181	109	$233.78	$93.79
99316 Nursing facility discharge management, more than 30 minutes	120	111	$273.61	$107.57
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	32	13	$275.00	$110.04
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	32	31	$340.50	$133.99
99497 Advance care planning, first 30 minutes	17	17	$258.00	$78.40

Medical Specialties & State Licenses

CMS Verified: 2022-10-18

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 53091

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

110045324/A (MA)

Hospital & Practice Group Affiliations

Vantage Healthcare Llc

45 Dan Rd, Canton, MA 020212852

Phone: 7818672050

Practice Associates & Co-Workers

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

26 Associated Practitioners

Dr. Kristofferson Lee , MD

Hospitalist

NPI 1053612614

Doctor of Medicine (M.D.)

Dr. Savitha Tudi , MD

Internal Medicine

NPI 1073722294

Doctor of Medicine (M.D.)

Cherie Wildrick , NP

Nurse Practitioner - Adult Health

NPI 1083151260

Nurse Practitioner

Melrose Lahood , NP

Nurse Practitioner - Family

NPI 1114114758

Nurse Practitioner

Dr. Michele Javadpoor , DNP, AGPCNP-BC

Nurse Practitioner - Gerontology

NPI 1124422951

Doctor of Nursing Practice, AGPCNPBC

Marie Leon

Nurse Practitioner

NPI 1215333117

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active March 13, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location March 13, 2015

Registered at 990 WASHINGTON ST, SUITE 203, DEDHAM, MA 020266714 (Tel: 4135436820)

📍

Updated Business Mailing Address March 13, 2015

Registered at 819 WORCESTER ST, STE 3, SPRINGFIELD, MA 011511045 (Tel: 4135436820)

👤

Provider Name / Credentials Updated March 13, 2015

Recorded as CLAES NILSSON, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 13, 2015

Internal Medicine (License #53091 in MA)

🟢

Initial NPI Registration & Enumeration September 22, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1912006065

Entity Type:

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

Enumeration Date: September 22, 2006

Last Update: October 19, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

819 Worcester St, Ste 3

Springfield, MA 011511045

Phone: 4135436820

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.