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CLARK TIMOTHY JOHNSON MD
NPI 1497989305
Obstetrics & Gynecology - Maternal & Fetal Medicine in Harrisburg, PA

Active since May 06, 2009PECOS Enrolled
76.58/100
CMS Quality Rating
100 S 2ND ST STE 4B, HARRISBURG, PA 17101(717) 231-8472(717) 231-8490 Get Directions Write a Review

NPPES record last updated: July 7, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 7, 2025, Nov 19, 2020 (2 updates tracked since 2020).

About Clark Timothy Johnson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CLARK TIMOTHY JOHNSON MD (NPI 1497989305) is an individual maternal & fetal medicine provider in Harrisburg, Pennsylvania, licensed in Pennsylvania (MD490154) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497989305
Entity TypeIndividualMale
Primary Taxonomy207VM0101X
Provider Legal NameCLARK TIMOTHY JOHNSONCredential: MD
Location Address100 S 2ND ST STE 4BHarrisburg, PA 17101-2546
Mailing Address100 S 2nd St Ste 4bHarrisburg, PA 17101-2546 · (717) 231-8472 · Fax (717) 231-8490
Phone(717) 231-8472
Fax(717) 231-8490
Sole ProprietorNo
Enumeration DateMay 6, 2009
Last NPPES UpdateJuly 7, 20252 updates tracked since enumeration
NPPES CertifiedJuly 7, 2025
✔ NPI 1497989305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in PA · MD490154
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License D76370 (MD), MD490154 (PA)
100 S 2ND ST STE 4B, Harrisburg, PA 17101
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Highmark Blue Cross Blue Shield Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Clark Timothy Johnson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.56
Promoting Interoperability100
Improvement Activities40
Cost48.54

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

FAREEZA AFZAL
Obstetrics & Gynecology
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-8472
REBECCA OBERSCHMIDT MS, CGC
Genetic Counselor, MS
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-6305
DR. CHRISTOPHER P PLUMMER DO
Obstetrics & Gynecology (Maternal & Fetal Medicine)
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-8473
LINNEA LUNDH LCGC
Genetic Counselor, MS
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-8472
PINNACLE HEALTH MEDICAL SERVICES
Obstetrics & Gynecology
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 988-1672
CAYLA BACHMAN
Nurse Practitioner
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-8472
DR. TIMOTHY BOLEY M.D.
Pediatrics (Neonatal-Perinatal Medicine)
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-8472
DR. AVI HAMEROFF M.D.
Obstetrics & Gynecology
100 S 2ND ST STE 4B
HARRISBURG, PA 17101
Dauphin County (717) 231-8472

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Clark Johnson's NPI number?

The NPI number for Clark Johnson is 1497989305. It was assigned to this individual provider in the NPPES registry on May 6, 2009.

Where is Clark Johnson located?

Clark Johnson practices at 100 S 2nd St Ste 4B, Harrisburg, PA 17101. The listed phone number is (717) 231-8472.

What is Clark Johnson's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Clark Johnson enrolled in Medicare?

Yes. Clark Johnson is registered in the Medicare PECOS enrollment system.

What insurance does Clark Johnson accept?

Health plans from Highmark Blue Cross Blue Shield Delaware list Clark Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Clark Johnson was last updated on July 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.