Doctor profile · Federal record

Dr. Mark Slootsky, M.D.

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Critical Care Medicine (Internal Medicine) Physician · Critical Care Medicine (Internal Medicine) Physician · Walnut Creek, CA

  • NPI 1396124749
  • Accepts Medicare
  • MIPS 92.7 / 100 · 2023
  • 11 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2700 Ygnacio Valley RD Ste 100
Walnut Creek, CA 945983462
(925) 939-3050
fax (925) 939-3057

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
May 20, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State licenses (2)
California #A145895 · Massachusetts #295561

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396124749. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,800
Distinct HCPCS
10
Medicare allowed
$237,464
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 443 221 $128
99291 Critical care, first 30-74 minutes 341 167 $232
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 292 142 $88
99214 Established patient office or other outpatient visit, 30-39 minutes 105 69 $134
99213 Established patient office or other outpatient visit, 20-29 minutes 100 69 $93
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 75 72 $193
32555 Aspiration of fluid from chest cavity using imaging guidance 49 39 $119
99442 Telephone medical discussion with physician, 11-20 minutes 37 29 $49
94618 Test for exercise-induced lung stress 34 31 $40
94060 Test to measure expiratory airflow and volume changes before and after medication administration 31 31 $50

In context: peer comparison

Among 9 peers in Walnut Creek Pulmonary Disease Physician, average services per provider: 80. This provider delivers 23× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$625
Transactions
14
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Inspire Medical Systems, INC. 3 $259.64
Boehringer Ingelheim Pharmaceuticals, INC. 4 $187.75
Actelion Pharmaceuticals US, INC. 1 $37.16
Takeda Pharmaceuticals U.S.A., INC. 1 $34.55
AstraZeneca Pharmaceuticals Lp 2 $33.99
Genzyme Corporation 1 $28.99
Mallinckrodt Hospital Products INC. 1 $23.56
Pulmonx Corporation 1 $19.31

By nature of payment

Food and Beverage
$625

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
429
Patients
82
Total drug cost
$275,508
Drug Type Claims Patients Total cost
Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) Brand 67 25 $34,513
Prednisone Generic 51 26 $403
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 50 0 $34,459
Eliquis (Apixaban) Brand 48 0 $26,731
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 32 19 $901
Allopurinol Generic 26 0 $135
Atorvastatin Calcium Generic 23 0 $136
Triamterene-Hydrochlorothiazid (Triamterene/Hydrochlorothiazid) Brand 23 0 $122
Pantoprazole Sodium Generic 20 0 $155
Montelukast Sodium Generic 19 0 $155

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Slootsky's medical specialty?
Dr. Mark Slootsky practices Pulmonary Disease Physician in Walnut Creek, CA.
Where does Dr. Mark Slootsky practice?
Dr. Mark Slootsky practices at 2700 Ygnacio Valley RD Ste 100, Walnut Creek, CA 945983462. Office phone: 9259393050.
What is Dr. Mark Slootsky's NPI?
Dr. Mark Slootsky's National Provider Identifier (NPI) is 1396124749, issued by NPPES.
Does Dr. Mark Slootsky accept Medicare assignment?
Yes. Dr. Mark Slootsky accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Slootsky commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.