Doctor profile · Federal record

Dr. Michael Mostyn, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Palm Desert, CA

  • NPI 1235166059
  • Accepts Medicare
  • 47 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
74990 Country Club Dr, Suite # 310
Palm Desert, CA 922601991
(760) 341-8800
fax (760) 775-4818
Mailing address
81767 Dr Carreon Blvd, Suite #201
Indio, CA 922015597

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
January 25, 2012
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A37252

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235166059. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
263
Distinct HCPCS
8
Medicare allowed
$23,057
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 114 68 $127
G0447 Face-to-face behavioral counseling for obesity, 15 minutes 31 24 $26
99213 Established patient office or other outpatient visit, 20-29 minutes 25 21 $91
G0442 Annual alcohol misuse screening, 5 to 15 minutes 22 22 $19
G0444 Annual depression screening, 5 to 15 minutes 21 21 $19
99497 Advance care planning, first 30 minutes 18 18 $84
99443 Telephone medical discussion with physician, 21-30 minutes 16 15 $67
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 16 16 $133

In context: peer comparison

Among 2 peers in Palm Desert Internal Medicine Physician, average services per provider: 29. This provider delivers 9.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$352
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Amgen INC. 1 $121.84
AstraZeneca Pharmaceuticals Lp 1 $116.75
Novo Nordisk INC 1 $113.33

By nature of payment

Food and Beverage
$352

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
455
Patients
173
Total drug cost
$7,207
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 72 39 $1,247
Lisinopril Generic 69 35 $841
Amlodipine Besylate Generic 56 26 $702
Metformin Hcl Generic 45 23 $556
Levothyroxine Sodium Generic 31 13 $643
Losartan Potassium Generic 25 14 $522
Hydrochlorothiazide Generic 23 0 $89
Metoprolol Succinate Generic 22 11 $686
Tamsulosin Hcl Generic 21 12 $620
Gabapentin Generic 17 0 $180

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Mostyn's medical specialty?
Dr. Michael Mostyn practices Internal Medicine Physician in Palm Desert, CA.
Where does Dr. Michael Mostyn practice?
Dr. Michael Mostyn practices at 74990 Country Club Dr, Palm Desert, CA 922601991. Office phone: 7603418800.
What is Dr. Michael Mostyn's NPI?
Dr. Michael Mostyn's National Provider Identifier (NPI) is 1235166059, issued by NPPES.
Does Dr. Michael Mostyn accept Medicare assignment?
Yes. Dr. Michael Mostyn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Mostyn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Face-to-face behavioral counseling for obesity (HCPCS G0447); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.