Doctor profile · Federal record

Dr. Natalie Zimmer-Maslon, DO

Internal Medicine Physician (CMS: Hospitalist) · Internal Medicine Physician · Hospitalist Physician · Saint Joseph, MI

  • NPI 1821586108
  • Accepts Medicare
  • MIPS 93.8 / 100 · 2023
  • 8 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1234 Napier Ave
Saint Joseph, MI 490852112
(269) 985-4632
fax (269) 985-4523

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
November 15, 2023
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Michigan #5101026189 · Michigan #5101023755

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821586108. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
553
Distinct HCPCS
4
Medicare allowed
$49,395
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 377 125 $78
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 94 93 $128
99239 Hospital discharge day management, more than 30 minutes 50 50 $112
99238 Hospital discharge day management, 30 minutes or less 32 32 $79

In context: peer comparison

Among 12 peers in this city , average services per provider: 86. This provider delivers 6.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
72
Patients
29
Total drug cost
$770
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 17 13 $315
Furosemide Generic 16 0 $70
Prednisone Generic 16 16 $61
Pantoprazole Sodium Generic 12 0 $129
Levetiracetam Generic 11 0 $196

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Natalie Zimmer-Maslon's medical specialty?
Dr. Natalie Zimmer-Maslon practices Internal Medicine Physician in Saint Joseph, MI.
Where does Dr. Natalie Zimmer-Maslon practice?
Dr. Natalie Zimmer-Maslon practices at 1234 Napier Ave, Saint Joseph, MI 490852112. Office phone: 2699854632.
What is Dr. Natalie Zimmer-Maslon's NPI?
Dr. Natalie Zimmer-Maslon's National Provider Identifier (NPI) is 1821586108, issued by NPPES.
Does Dr. Natalie Zimmer-Maslon accept Medicare assignment?
Yes. Dr. Natalie Zimmer-Maslon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Natalie Zimmer-Maslon commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.