DR. NATHANIEL JOSEF JELLINEK (MD) – MOHS-Micrographic Surgery Physician, NPI 1245256528

DR. NATHANIEL JOSEF JELLINEK (MD) is a healthcare provider. based in Amherst, Massachusetts. specializing in DERMATOLOGY. They hold the professional credentials MD. They hold a License No. 220846 (MA). The NPI Number for DR. NATHANIEL JOSEF JELLINEK (MD) is 1245256528

Main info

Male
Sole Proprietor
26 Years Of Experience
Accepts Medicare Assignment
Name
DR. NATHANIEL JOSEF JELLINEK (MD)
NPI
1245256528
Phone
(413) 549-7400
Address
29 Cottage St Ste B
Enumeration Date
13 July 2006
Last Update Date
24 April 2026

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
9783717010
Graduation Year
2000 (26 years ago)
PAC ID
5193704617
Group Practice PAC ID
0244201960
Professional Enrollment ID
I20040719000291
Address ID
MA010021206AM29XXXSTXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience76
Completeness85
Years active:19State licenses:2Digital endpointsOther names

744 DERMATOLOGY in MA

Provider Addresses for DR. NATHANIEL JOSEF JELLINEK (MD)

  • 29 Cottage St Ste B

    Amherst, MA 010022178

    Phone: (413) 549-7400

    Fax: (413) 549-7402

    Type: Location

  • 153 E Washington St

    North Attleboro, MA 027602312

    Phone: (508) 699-7546

    Fax: (508) 699-7570

    Type: Location

  • 1672 S COUNTY TRL STE 101

    EAST GREENWICH, RI 028185099

    Phone: (404) 885-6647

    Fax: (401) 885-6639

    Type: Mailing

  • 1672, South County Trail, Frys Corner, East Greenwich, Kent County, Rhode Island, 02818, United States

    SUITE 101

    EAST GREENWICH, RI 028185098

    Phone: (404) 885-6647

    Fax: (401) 885-6639

    Type: Mailing

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: 2005-06-06

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

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
I20040719000291IDermatologyMATBD
I20050606000103IDermatologyRITBD

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
17311Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks480367$0
17312Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks304194$0
13132Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm209187$0
99213Established patient office or other outpatient visit, 20-29 minutes171117$0
13121Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm120114$0
View full utilization report →

Insurance plans in this area (ZIP 01002)

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Provider's Procedures

DR. NATHANIEL JOSEF JELLINEK (MD) performs procedures in DERMATOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
DERMATOLOGYRI11101Biopsy of each additional growth of skin and/or tissue2616

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: 0244201960View full group profile
NameSpecialtyState
Physician AssistantMA
Nurse PractitionerMA
D E R M A T O L O G YMA
D E R M A T O L O G YMA
D E R M A T O L O G YMA

Reviews

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Frequently asked questions

Can I verify DR. NATHANIEL JOSEF JELLINEK (MD) with an NPI only?
You can start verification with NPI 1245256528 for DR. NATHANIEL JOSEF JELLINEK (MD), then check state licensing separately.
Can I rely on DR. NATHANIEL JOSEF JELLINEK (MD) being an active provider?
As of the registry snapshot, DR. NATHANIEL JOSEF JELLINEK (MD) is marked active.
What healthcare role does DR. NATHANIEL JOSEF JELLINEK (MD) hold?
Scheduling teams often label DR. NATHANIEL JOSEF JELLINEK (MD) under MOHS-Micrographic Surgery Physician. Clinical services aligned with this taxonomy classification.
Where should I expect DR. NATHANIEL JOSEF JELLINEK (MD) on a map?
Expect Amherst, Massachusetts as a primary anchor for DR. NATHANIEL JOSEF JELLINEK (MD) unless the record lists multiple sites.
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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