Active NPI 1992914964 Individual Practitioner Female Practitioner

Ka-Yi Lo , PA

Physician Assistant • Cambridge, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Ka-Yi Lo, PA is a certified Physician Assistant practicing in Cambridge, MA. With approximately 20 years of clinical experience since completing medical education in 2006, Ka-Yi Lo delivers high-quality medical care to the local community at 1493 CAMBRIDGE ST.

Ka-Yi Lo is affiliated with Atrius Health Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, methylprednisolone acetate, 1 mg, new patient outpatient office visit, established 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

1493 Cambridge St

Cambridge, MA 021391047

Telephone 6174996636

Associated Practice Facility / Clinic

🏢 Cambridge Public Health Commission Facility NPI 1487603585

Medicare Profile & Education

Medical School

Other

Graduation Year

2006

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Cambridge, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

20 Yrs +10.1 yrs vs City Avg

City Avg: 9.9 Yrs

State Avg: 10.0 Yrs

Regional Practice Density

99 Specialists

Practicing in Cambridge, MA (4746 Statewide)

Telehealth Adoption Rate

17.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

69.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Lo (20 Years) 20 Yrs

Cambridge Specialty Average (9.9 Years) 9.9 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	1,500	57	$0.30	$0.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	100	100	$346.00	$103.19
99213 Established patient office or other outpatient visit, typically 15 minutes	97	79	$268.41	$84.40
20550 Injection into tendon or ligament	68	52	$159.00	$49.65
J1030 Injection, methylprednisolone acetate, 40 mg	24	22	$17.00	$6.34
20526 Injection of carpal tunnel	14	13	$313.50	$90.74
20600 Aspiration and/or injection of fluid from small joint	11	11	$156.00	$52.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	104	104	$346.00	$103.96
99213 Established patient office or other outpatient visit, typically 15 minutes	91	74	$265.69	$84.63
J1030 Injection, methylprednisolone acetate, 40 mg	85	64	$17.00	$7.59
20550 Injection into tendon or ligament	55	42	$164.78	$53.67
Q4010 Cast supplies, short arm cast, adult (11 years +), fiberglass	12	12	$53.00	$22.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	89	74	$238.00	$86.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	61	61	$346.00	$104.87
J1030 Injection, methylprednisolone acetate, 40 mg	55	41	$17.00	$6.68
20550 Injection into tendon or ligament	55	40	$164.78	$51.13
J1040 Injection, methylprednisolone acetate, 80 mg	21	18	$31.00	$11.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	95	95	$323.73	$107.41
99213 Established patient office or other outpatient visit, typically 15 minutes	75	70	$215.92	$87.54
J1040 Injection, methylprednisolone acetate, 80 mg	59	46	$31.00	$10.64
20550 Injection into tendon or ligament	42	35	$166.57	$51.55
J1030 Injection, methylprednisolone acetate, 40 mg	33	23	$17.00	$5.68
20526 Injection of carpal tunnel	25	20	$323.40	$94.27
99441 Telephone medical discussion with physician, 5-10 minutes	16	15	$100.19	$54.43
20600 Aspiration and/or injection of fluid from small joint	14	14	$153.21	$48.46
36415 Insertion of needle into vein for collection of blood sample	12	12	$12.00	$3.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	76	64	$202.00	$71.04
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	63	63	$300.00	$103.00
J1040 Injection, methylprednisolone acetate, 80 mg	44	36	$31.00	$11.58
20550 Injection into tendon or ligament	41	36	$162.88	$49.45
J1030 Injection, methylprednisolone acetate, 40 mg	30	19	$17.00	$6.04
20526 Injection of carpal tunnel	19	14	$303.95	$84.63
99441 Telephone medical discussion with physician, 5-10 minutes	15	14	$61.33	$43.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	139	117	$202.00	$69.82
J1020 Injection, methylprednisolone acetate, 20 mg	74	50	$15.00	$3.78
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$297.00	$101.76
20550 Injection into tendon or ligament	47	33	$162.38	$46.37
20526 Injection of carpal tunnel	18	16	$320.83	$88.06
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	14	$122.00	$42.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	135	115	$185.00	$68.71
J1020 Injection, methylprednisolone acetate, 20 mg	74	60	$13.00	$4.67
20550 Injection into tendon or ligament	53	46	$138.45	$47.20
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$273.83	$101.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	108	96	$139.58	$67.15
J1020 Injection, methylprednisolone acetate, 20 mg	54	42	$8.00	$5.21
20550 Injection into tendon or ligament	32	28	$112.00	$45.63
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	30	30	$204.00	$99.61
36415 Insertion of needle into vein for collection of blood sample	11	11	$6.00	$2.94

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License MA 2244

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Atrius Health Inc

142 Berkeley St, Boston, MA 021165100

Phone: 6178595000

Atrius Health Inc

133 Brookline Ave, Boston, MA 022153904

Phone: 6174211000

Atrius Health Inc

1 Lyons St, Dedham, MA 020265599

Phone: 7813291400

Atrius Health Inc

100 2nd Ave, Needham, MA 024942809

Phone: 7817264800

Practice Associates & Co-Workers

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

6 Associated Practitioners

Dr. Larissa Feijo , PhD

Psychologist

NPI 1093859696

Doctor of Philosophy (Ph.D.)

Dorinda Jaquith , LICSW

Social Worker - Clinical

NPI 1134227077

Licensed Independent Clinical Social Worker

Dr. Edgardo Trejo , MD

Psychiatry & Neurology - Neurology

NPI 1386717627

Doctor of Medicine (M.D.)

Dr. Richard Sullivan , MD

Emergency Medicine

NPI 1417024134

Doctor of Medicine (M.D.)

Kimberly Thompson , LICSW

Social Worker - Clinical

NPI 1891868154

Licensed Independent Clinical Social Worker

Jan Perley , LICSW

Social Worker

NPI 1922217900

Licensed Independent Clinical Social Worker

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active October 25, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location October 25, 2007

Registered at 1493 CAMBRIDGE ST, CAMBRIDGE, MA 021391047 (Tel: 6174996636)

📍

Updated Business Mailing Address October 25, 2007

Registered at 1493 CAMBRIDGE ST, CAMBRIDGE, MA 021391047 (Tel: 6174996636)

👤

Provider Name / Credentials Updated October 25, 2007

Recorded as KA-YI LO, PA

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 25, 2007

Physician Assistant (License #2244 in MA)

🟢

Initial NPI Registration & Enumeration May 22, 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: 1992914964

Entity Type:

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

Enumeration Date: May 22, 2007

Last Update: October 25, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1493 Cambridge St

Cambridge, MA 021391047

Phone: 6174996636

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.