DR. DENNIS MICHAEL STYNE (M.D.) – Pediatric Endocrinology Physician, NPI 1023093499

DR. DENNIS MICHAEL STYNE (M.D.) is a healthcare provider. based in Sacramento, California. specializing in Pediatric Endocrinology Physician. They hold the professional credentials M.D.. They hold a License No. G23965 (CA). The NPI Number for DR. DENNIS MICHAEL STYNE (M.D.) is 1023093499

Main info

Male
55 Years Of Experience
Accepts Medicare Assignment
Name
DR. DENNIS MICHAEL STYNE (M.D.)
NPI
1023093499
Phone
(916) 734-0129
Address
2516 STOCKTON BLVD
Enumeration Date
8 December 2005
Last Update Date
2 December 2011

Doctor Profile

Medical School Name
NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Secondary Phone
9167342011
Graduation Year
1971 (55 years ago)
PAC ID
8123924024
Group Practice PAC ID
3375456619
Professional Enrollment ID
I20031210001200
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. DENNIS MICHAEL STYNE (M.D.)

  • 2516, Stockton Boulevard, Sacramento, Sacramento County, California, 95817, United States

    SACRAMENTO, CA 958172208

    Phone: (916) 734-0129

    Fax: (916) 734-7070

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2003-12-10

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20031210001200IPediatric MedicineCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 95817)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3375456619View full group profile
NameSpecialtyState
Nurse PractitionerNY
-PA
-CA
Certified Registered Nurse Anesthetist (Crna)CA
Physician AssistantIL
Internal Medicine, Hospice/Palliative CareCA
Family PracticeCA
-CA
-CA
Internal MedicineVA

Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. DENNIS MICHAEL STYNE (M.D.)?
DR. DENNIS MICHAEL STYNE (M.D.) — NPI 1023093499 — is the standard way to identify this listing.
Does the file indicate DR. DENNIS MICHAEL STYNE (M.D.) is practicing under active NPI?
Directory data currently reports DR. DENNIS MICHAEL STYNE (M.D.) as active.
What is DR. DENNIS MICHAEL STYNE (M.D.)'s specialty?
The listing groups DR. DENNIS MICHAEL STYNE (M.D.) with Pediatric Endocrinology Physician. Clinical services aligned with this taxonomy classification.
Where is DR. DENNIS MICHAEL STYNE (M.D.) based?
DR. DENNIS MICHAEL STYNE (M.D.) is tied to Sacramento, California in the data we show; additional addresses may exist on the full record.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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