LEONARD G JR. HERING (M.D.) – Obstetrics & Gynecology Physician, NPI 1376549964

LEONARD G JR. HERING (M.D.) is a healthcare provider. based in Mchenry, Illinois. specializing in OBSTETRICS/GYNECOLOGY. They hold the professional credentials M.D.. They hold a License No. 036081640 (IL). The NPI Number for LEONARD G JR. HERING (M.D.) is 1376549964

Main info

Male
38 Years Of Experience
Accepts Medicare Assignment
Name
LEONARD G JR. HERING (M.D.)
NPI
1376549964
Phone
(815) 338-6600
Address
4309 W MEDICAL CENTER DR STE B305
Enumeration Date
28 June 2005
Last Update Date
19 October 2018

Doctor Profile

Medical School Name
UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Secondary Phone
8157598070
Graduation Year
1988 (38 years ago)
PAC ID
8224135116
Group Practice PAC ID
5890696231
Professional Enrollment ID
I20070530000300
Address ID
IL600508411MC4309XDRXX502
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

1,923 OBSTETRICS/GYNECOLOGY in IL

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Provider Addresses for LEONARD G JR. HERING (M.D.)

  • West Medical Center Drive, McHenry, McHenry County, Illinois, 60050, United States

    MCHENRY, IL 600508418

    Phone: (815) 338-6600

    Fax: (815) 759-4941

    Type: Mailing

  • 10400 Haligus Rd

    Huntley, IL 601429553

    Phone: (224) 654-0000

    Type: Location

  • 360 Station Dr Ste 100

    Crystal Lake, IL 600147994

    Phone: (815) 338-6600

    Fax: (815) 356-2335

    Type: Location

  • 4201 W Medical Center Dr

    McHenry, IL 600508409

    Phone: (815) 344-5000

    Type: Location

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: 2007-05-30

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
I20070530000300IObstetrics/GynecologyILTBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
G0101Cervical or vaginal cancer screening; pelvic and clinical breast examination1313$0
View full utilization report →

Insurance plans in this area (ZIP 60050)

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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: 5890696231View full group profile
NameSpecialtyState
General SurgeryIL
Vascular SurgeryIL
-IL
Nurse PractitionerIL
-IL
C H I R O P R A C T I CIL
Family PracticeIL
Physical Medicine And RehabilitationCO
-IL
Hospitalist, Family PracticeIL

Reviews

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Frequently asked questions

Can I verify LEONARD G JR. HERING (M.D.) with an NPI only?
You can start verification with NPI 1376549964 for LEONARD G JR. HERING (M.D.), then check state licensing separately.
Is LEONARD G JR. HERING (M.D.) listed as active for patients and plans?
The listing shows LEONARD G JR. HERING (M.D.) as active in the NPI system.
What healthcare role does LEONARD G JR. HERING (M.D.) hold?
Scheduling teams often label LEONARD G JR. HERING (M.D.) under Obstetrics & Gynecology Physician. Clinical services aligned with this taxonomy classification.
Where is LEONARD G JR. HERING (M.D.) based?
LEONARD G JR. HERING (M.D.) is tied to Mchenry, Illinois in the data we show; additional addresses may exist on the full record.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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