Doctor profile · Federal record

Dr. Addie Day, RN, ANP-C

Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Registered Nurse · Primary Care Nurse Practitioner · Registered Nurse · Nurse Practitioner · Cambridge, MA

  • NPI 1104251602
  • Accepts Medicare
  • 13 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
625 Mount Auburn St Ste 101A
Cambridge, MA 021384518
(617) 492-4545
Mailing address
330 Mt Auburn St, Parsons 2
Cambridge, MA 021385597

Credentials & registration

NPPES · NUCC
NPI registered
September 2013 — 13 yrs on file
Profile last updated
March 7, 2025
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
363LA2200X — NUCC code
State licenses (2)
Massachusetts #RN2277693 · New Hampshire #068485-21

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104251602. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
316
Distinct HCPCS
5
Medicare allowed
$23,353
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 186 138 $85
36415 Insertion of needle into vein for collection of blood sample 56 48 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 44 40 $119
81002 Urinalysis, manual test 15 12 $3
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 15 15 $121

In context: peer comparison

Among 8 peers in this city , average services per provider: 57. This provider delivers 5.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
934
Patients
439
Total drug cost
$18,983
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 173 73 $3,196
Lisinopril Generic 121 57 $1,379
Amlodipine Besylate Generic 110 55 $1,125
Levothyroxine Sodium Generic 90 39 $1,357
Rosuvastatin Calcium Generic 53 28 $4,526
Omeprazole Generic 50 24 $1,107
Chlorthalidone Generic 47 21 $1,447
Metoprolol Succinate Generic 46 21 $1,455
Pravastatin Sodium Generic 40 18 $1,093
Gabapentin Generic 38 17 $338

Frequently asked questions

Auto-generated from federal data
What is Dr. Addie Day's medical specialty?
Dr. Addie Day practices Adult Health Nurse Practitioner in Cambridge, MA.
Where does Dr. Addie Day practice?
Dr. Addie Day practices at 625 Mount Auburn St Ste 101A, Cambridge, MA 021384518. Office phone: 6174924545.
What is Dr. Addie Day's NPI?
Dr. Addie Day's National Provider Identifier (NPI) is 1104251602, issued by NPPES.
Does Dr. Addie Day accept Medicare assignment?
Yes. Dr. Addie Day accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Addie Day commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.