Doctor profile · Federal record

Dr. Clarissa Lock-O'Hanlon, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · New York, NY

  • NPI 1528591013
  • Accepts Medicare
  • MIPS 93.4 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
38 E 32Nd St Fl 3
New York, NY 100165568
(646) 962-3940

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
August 4, 2023
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New York #306494

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1528591013. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
877
Distinct HCPCS
10
Medicare allowed
$76,488
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 201 138 $147
36415 Insertion of needle into vein for collection of blood sample 184 144 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 103 101 $17
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 102 102 $148
99213 Established patient office or other outpatient visit, 20-29 minutes 99 81 $104
G0008 Administration of influenza virus vaccine 31 31 $35
90662 Influenza vaccine split virus, preservative free 29 29 $72
90480 Admn sarscov2 vacc 1 dose 25 25 $47
91320 Sarscv2 vac 30mcg trs-suc im 25 25 $128
87636 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b 22 19 $140

In context: peer comparison

Among 559 peers in this city , average services per provider: 137. This provider delivers 6.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
391
Patients
135
Total drug cost
$11,131
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 70 31 $891
Amlodipine Besylate Generic 44 21 $679
Rosuvastatin Calcium Generic 44 20 $1,399
Levothyroxine Sodium Generic 36 13 $798
Hydrochlorothiazide Generic 33 16 $198
Escitalopram Oxalate Generic 25 0 $661
Zolpidem Tartrate Generic 23 12 $124
Metformin Hcl Generic 19 0 $154
Metoprolol Succinate Generic 19 0 $372
Lisinopril Generic 15 0 $51

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Clarissa Lock-O'Hanlon's medical specialty?
Dr. Clarissa Lock-O'Hanlon practices Internal Medicine Physician in New York, NY.
Where does Dr. Clarissa Lock-O'Hanlon practice?
Dr. Clarissa Lock-O'Hanlon practices at 38 E 32Nd St Fl 3, New York, NY 100165568. Office phone: 6469623940.
What is Dr. Clarissa Lock-O'Hanlon's NPI?
Dr. Clarissa Lock-O'Hanlon's National Provider Identifier (NPI) is 1528591013, issued by NPPES.
Does Dr. Clarissa Lock-O'Hanlon accept Medicare assignment?
Yes. Dr. Clarissa Lock-O'Hanlon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clarissa Lock-O'Hanlon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.